A high-visibility scarlet shell stool with a 610mm seat height, featuring anti-tilt safety geometry and an ergonomic high back for secure use in school science labs.
A technical display of a red stool highlighting its BS EN16139:2013 Level 2 rating for severe contract use, 125kg weight limit, and compact stacking of 12 units.
Technical schematic for the high back stool series detailing a 610mm seat height, 945mm total height, and 6.3kg unit weight for the 610mm laboratory model.

Overview

Features

Safety & Warranty

Specifications & Dimensions

Delivery & Returns

Product FAQs

Product Overview: 685mm Red High Back Senior Stool

This High Back Stool range is the definitive answer to the rigorous demands of modern higher education and professional workshops. Dispatched with Free UK Mainland Delivery, the 685mm Red model combines striking aesthetics with a maintenance-free, industrial build.

Indestructible One-Piece Build

  • Structural Unity: The seamless polypropylene design contains zero fixings or rivets, ensuring the stool cannot loosen or break under the pressure of daily institutional use.
  • Clinical Hygiene: A non-porous, waterproof surface makes this stool ideal for science and food technology suites, as it can be thoroughly disinfected without risk of rusting or absorption.
  • High-Density Storage: Features an industry-leading nesting profile that allows 16 stools to be stacked safely within a 2-metre vertical footprint, saving valuable floor space.

Safety & Posture Focused

  • Anti-Tilt Security: The integrated skid rails provide a widened base of support, preventing users from leaning back or tipping—a vital safety feature for seating at this height.
  • Enhanced Circulation: A built-in 40mm footrest and waterfall front seat edge work in tandem to improve blood flow and reduce leg fatigue during long practical sessions.
  • Severe Use Certified: Independently tested to BS EN16139 Level 2, this stool is rated for "severe contract" use, exceeding the requirements of standard educational furniture.

Sustainable British Quality

We are proud to supply high-performance, British-made furniture that supports local manufacturing while adhering to the strictest safety standards. By choosing this 100% recyclable one-piece stool, your institution is investing in a greener future without compromising on structural safety or long-term durability.

The Cobolt Standard

  • 50 Years of Heritage: Draw on five decades of experience in supplying the UK public sector with furniture that is certified to withstand the test of time.
  • Free UK Mainland Delivery: We manage all transport logistics at no extra cost, providing a transparent and budget-friendly procurement experience.
  • 10-Year Protection: Every stool is backed by a 10-year structural guarantee, ensuring absolute peace of mind for your facility’s investment.

Where is this 685mm Red One-Piece Stool used?

The Red High Back Senior Stool is a premier choice for University Science Labs, Adult Education Studios, Architecture Workshops, and Sixth Form Breakout Zones. Its bold Red finish provides a modern, high-energy aesthetic that is both practical and professional.

Key Features

  • Jointless Structural Moulding – A singular piece of polypropylene with no fixings to maintain or replace.
  • 685mm Senior Height – Precision dimensioned for adult-height (900mm+) work benches and drafting tables.
  • Anti-Tilt Skid Frame – Integrated rails ensure the stool remains grounded and stable during active use.
  • Severe Use Rated – Meets BS EN16139 Level 2 standards for industrial-grade educational durability.
  • High-Back Lumbar Support – Ergonomic shell helps students maintain focus and reduces postural fatigue.
  • Integrated 40mm Footrest – Encourages correct posture and provides essential support for users at height.
  • Chemical & Water Resistant – Easy-clean surface that withstands spills in art or science environments.
  • 16-High Stacking – Market-leading vertical nesting for effortless room transitions and storage.
UK Manufactured icon
Proudly UK Manufactured
10 Year Warranty icon
10-year manufacturer guarantee
Free delivery icon
Free UK Mainland Delivery

Where is this 685mm Red One-Piece Stool used?

The Red High Back Senior Stool is a premier choice for University Science Labs, Adult Education Studios, Architecture Workshops, and Sixth Form Breakout Zones. Its bold Red finish provides a modern, high-energy aesthetic that is both practical and professional.

Key Features

  • Jointless Structural Moulding – A singular piece of polypropylene with no fixings to maintain or replace.
  • 685mm Senior Height – Precision dimensioned for adult-height (900mm+) work benches and drafting tables.
  • Anti-Tilt Skid Frame – Integrated rails ensure the stool remains grounded and stable during active use.
  • Severe Use Rated – Meets BS EN16139 Level 2 standards for industrial-grade educational durability.
  • High-Back Lumbar Support – Ergonomic shell helps students maintain focus and reduces postural fatigue.
  • Integrated 40mm Footrest – Encourages correct posture and provides essential support for users at height.
  • Chemical & Water Resistant – Easy-clean surface that withstands spills in art or science environments.
  • 16-High Stacking – Market-leading vertical nesting for effortless room transitions and storage.
UK Manufactured icon
Proudly UK Manufactured
10 Year Warranty icon
10-year manufacturer guarantee
Free delivery icon
Free UK Mainland Delivery

The 685mm Red High Back Stool is engineered for senior-level academic environments. Technical dimensions for facility planning are provided below.

Seat Height
685mm
Weight Capacity
125kg
Warranty
10 Years
Specification
Details
Purpose / Benefit
Total Height
1020mm
High-back support for adult users
Total Dimensions
1020mm(H) x 495mm(W) x 530mm(D)
Optimised footprint for senior workstations
Construction Material
Seamless Polypropylene
Rust-proof, chemical-resistant, and jointless
Stacking Height
16 High (approx. 2m)
Maximises storage floor space
Unit Weight
6.6kg
Sturdy yet portable for campus handling
Compliance
BS EN16139 Level 2
Certified for severe institutional use

FREE Delivery to UK Mainland Zone 1

Your order will be delivered on a standard 5 Working Days service.

For all other locations, please email help@coboltfurniture.co.uk for a quote.


  • Made to Order: Many of our products are manufactured specifically for your order. Because of this, returns depend on the product specifics and require prior permission from Cobolt Furniture.
  • Cancellations: We always endeavour to reduce cancellation costs. However, please note a partial or entire charge may be levied to cover material costs and administrative fees if a made-to-order line is cancelled.

FAQs: Professional High-Bench Stools

Q: When should I choose the 685mm height for my facility?

A: The 685mm seat height is designed for use with workstations that are approximately 900mm to 1000mm high. This is the industry standard for university laboratories, adult education studios, and professional workshop environments.

Q: How does the anti-tilt frame protect senior students?

A: At a 685mm seat height, tipping is a major safety risk. Our signature skid-rail design prevents the stool from tilting backwards if a user shifts their weight, ensuring a stable and safe platform for practical work.

Q: Can I clean these stools with medical-grade disinfectants?

A: Yes. The non-porous polypropylene is highly resistant to most school-grade acids and detergents. It can be wiped down quickly to maintain a high level of hygiene in science or food tech rooms.

Q: How stable is a stack of 16 stools?

A: The precision nesting design ensures that the weight of the stack is distributed vertically. This creates a highly stable column that won't lean or tip even when stored at the maximum height of 16 units.

Q: Does the red finish show surface scratches easily?

A: No. The high-impact polypropylene is through-coloured and features a textured finish that is specifically designed to hide surface marks and maintain its vibrant appearance in high-traffic settings.

Q: Is there any assembly required on delivery?

A: No. These stools are delivered fully moulded and ready for immediate deployment. This jointless design means there are no screws to check or tighten, reducing long-term maintenance costs.

Q: Are these stools environmentally sustainable?

A: Yes. They are 100% responsibly recyclable at the end of their life. Additionally, their UK manufacture means they carry a significantly smaller carbon footprint compared to furniture imported from overseas.

Q: Why choose the high-back model for university students?

A: High-back stools offer essential lumbar reinforcement, which is often missing in lab seating. This support helps students maintain focus and reduces back strain during lengthy double-period practicals.

Overview

Product Overview: 685mm Red High Back Senior Stool

This High Back Stool range is the definitive answer to the rigorous demands of modern higher education and professional workshops. Dispatched with Free UK Mainland Delivery, the 685mm Red model combines striking aesthetics with a maintenance-free, industrial build.

Indestructible One-Piece Build

  • Structural Unity: The seamless polypropylene design contains zero fixings or rivets, ensuring the stool cannot loosen or break under the pressure of daily institutional use.
  • Clinical Hygiene: A non-porous, waterproof surface makes this stool ideal for science and food technology suites, as it can be thoroughly disinfected without risk of rusting or absorption.
  • High-Density Storage: Features an industry-leading nesting profile that allows 16 stools to be stacked safely within a 2-metre vertical footprint, saving valuable floor space.

Safety & Posture Focused

  • Anti-Tilt Security: The integrated skid rails provide a widened base of support, preventing users from leaning back or tipping—a vital safety feature for seating at this height.
  • Enhanced Circulation: A built-in 40mm footrest and waterfall front seat edge work in tandem to improve blood flow and reduce leg fatigue during long practical sessions.
  • Severe Use Certified: Independently tested to BS EN16139 Level 2, this stool is rated for "severe contract" use, exceeding the requirements of standard educational furniture.

Sustainable British Quality

We are proud to supply high-performance, British-made furniture that supports local manufacturing while adhering to the strictest safety standards. By choosing this 100% recyclable one-piece stool, your institution is investing in a greener future without compromising on structural safety or long-term durability.

The Cobolt Standard

  • 50 Years of Heritage: Draw on five decades of experience in supplying the UK public sector with furniture that is certified to withstand the test of time.
  • Free UK Mainland Delivery: We manage all transport logistics at no extra cost, providing a transparent and budget-friendly procurement experience.
  • 10-Year Protection: Every stool is backed by a 10-year structural guarantee, ensuring absolute peace of mind for your facility’s investment.

Features & Benefits

Where is this 685mm Red One-Piece Stool used?

The Red High Back Senior Stool is a premier choice for University Science Labs, Adult Education Studios, Architecture Workshops, and Sixth Form Breakout Zones. Its bold Red finish provides a modern, high-energy aesthetic that is both practical and professional.

Key Features

  • Jointless Structural Moulding – A singular piece of polypropylene with no fixings to maintain or replace.
  • 685mm Senior Height – Precision dimensioned for adult-height (900mm+) work benches and drafting tables.
  • Anti-Tilt Skid Frame – Integrated rails ensure the stool remains grounded and stable during active use.
  • Severe Use Rated – Meets BS EN16139 Level 2 standards for industrial-grade educational durability.
  • High-Back Lumbar Support – Ergonomic shell helps students maintain focus and reduces postural fatigue.
  • Integrated 40mm Footrest – Encourages correct posture and provides essential support for users at height.
  • Chemical & Water Resistant – Easy-clean surface that withstands spills in art or science environments.
  • 16-High Stacking – Market-leading vertical nesting for effortless room transitions and storage.
UK Manufactured icon
Proudly UK Manufactured
10 Year Warranty icon
10-year manufacturer guarantee
Free delivery icon
Free UK Mainland Delivery

Safety & Warranty

Where is this 685mm Red One-Piece Stool used?

The Red High Back Senior Stool is a premier choice for University Science Labs, Adult Education Studios, Architecture Workshops, and Sixth Form Breakout Zones. Its bold Red finish provides a modern, high-energy aesthetic that is both practical and professional.

Key Features

  • Jointless Structural Moulding – A singular piece of polypropylene with no fixings to maintain or replace.
  • 685mm Senior Height – Precision dimensioned for adult-height (900mm+) work benches and drafting tables.
  • Anti-Tilt Skid Frame – Integrated rails ensure the stool remains grounded and stable during active use.
  • Severe Use Rated – Meets BS EN16139 Level 2 standards for industrial-grade educational durability.
  • High-Back Lumbar Support – Ergonomic shell helps students maintain focus and reduces postural fatigue.
  • Integrated 40mm Footrest – Encourages correct posture and provides essential support for users at height.
  • Chemical & Water Resistant – Easy-clean surface that withstands spills in art or science environments.
  • 16-High Stacking – Market-leading vertical nesting for effortless room transitions and storage.
UK Manufactured icon
Proudly UK Manufactured
10 Year Warranty icon
10-year manufacturer guarantee
Free delivery icon
Free UK Mainland Delivery

Specification Dimensions

The 685mm Red High Back Stool is engineered for senior-level academic environments. Technical dimensions for facility planning are provided below.

Seat Height
685mm
Weight Capacity
125kg
Warranty
10 Years
Specification
Details
Purpose / Benefit
Total Height
1020mm
High-back support for adult users
Total Dimensions
1020mm(H) x 495mm(W) x 530mm(D)
Optimised footprint for senior workstations
Construction Material
Seamless Polypropylene
Rust-proof, chemical-resistant, and jointless
Stacking Height
16 High (approx. 2m)
Maximises storage floor space
Unit Weight
6.6kg
Sturdy yet portable for campus handling
Compliance
BS EN16139 Level 2
Certified for severe institutional use

Delivery & Returns

FREE Delivery to UK Mainland Zone 1

Your order will be delivered on a standard 5 Working Days service.

For all other locations, please email help@coboltfurniture.co.uk for a quote.


  • Made to Order: Many of our products are manufactured specifically for your order. Because of this, returns depend on the product specifics and require prior permission from Cobolt Furniture.
  • Cancellations: We always endeavour to reduce cancellation costs. However, please note a partial or entire charge may be levied to cover material costs and administrative fees if a made-to-order line is cancelled.

Product FAQs

FAQs: Professional High-Bench Stools

Q: When should I choose the 685mm height for my facility?

A: The 685mm seat height is designed for use with workstations that are approximately 900mm to 1000mm high. This is the industry standard for university laboratories, adult education studios, and professional workshop environments.

Q: How does the anti-tilt frame protect senior students?

A: At a 685mm seat height, tipping is a major safety risk. Our signature skid-rail design prevents the stool from tilting backwards if a user shifts their weight, ensuring a stable and safe platform for practical work.

Q: Can I clean these stools with medical-grade disinfectants?

A: Yes. The non-porous polypropylene is highly resistant to most school-grade acids and detergents. It can be wiped down quickly to maintain a high level of hygiene in science or food tech rooms.

Q: How stable is a stack of 16 stools?

A: The precision nesting design ensures that the weight of the stack is distributed vertically. This creates a highly stable column that won't lean or tip even when stored at the maximum height of 16 units.

Q: Does the red finish show surface scratches easily?

A: No. The high-impact polypropylene is through-coloured and features a textured finish that is specifically designed to hide surface marks and maintain its vibrant appearance in high-traffic settings.

Q: Is there any assembly required on delivery?

A: No. These stools are delivered fully moulded and ready for immediate deployment. This jointless design means there are no screws to check or tighten, reducing long-term maintenance costs.

Q: Are these stools environmentally sustainable?

A: Yes. They are 100% responsibly recyclable at the end of their life. Additionally, their UK manufacture means they carry a significantly smaller carbon footprint compared to furniture imported from overseas.

Q: Why choose the high-back model for university students?

A: High-back stools offer essential lumbar reinforcement, which is often missing in lab seating. This support helps students maintain focus and reduces back strain during lengthy double-period practicals.

Red One-Piece Polypropylene Anti-Tilt High Back Stools - 685mm Seat Height

Product code: ST1685RE
Incorporate vibrant colour and heavy-duty performance into your high-bench environments with the Red One-Piece Polypropylene Anti-Tilt High Back Stool...

Inc VAT

Exc VAT

£69.00

£57.50

Colours - Red
Seat Height - 685mm

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Overview

Features

Safety & Warranty

Specifications & Dimensions

Delivery & Returns

Product FAQs

Product Overview: 685mm Red High Back Senior Stool

This High Back Stool range is the definitive answer to the rigorous demands of modern higher education and professional workshops. Dispatched with Free UK Mainland Delivery, the 685mm Red model combines striking aesthetics with a maintenance-free, industrial build.

Indestructible One-Piece Build

  • Structural Unity: The seamless polypropylene design contains zero fixings or rivets, ensuring the stool cannot loosen or break under the pressure of daily institutional use.
  • Clinical Hygiene: A non-porous, waterproof surface makes this stool ideal for science and food technology suites, as it can be thoroughly disinfected without risk of rusting or absorption.
  • High-Density Storage: Features an industry-leading nesting profile that allows 16 stools to be stacked safely within a 2-metre vertical footprint, saving valuable floor space.

Safety & Posture Focused

  • Anti-Tilt Security: The integrated skid rails provide a widened base of support, preventing users from leaning back or tipping—a vital safety feature for seating at this height.
  • Enhanced Circulation: A built-in 40mm footrest and waterfall front seat edge work in tandem to improve blood flow and reduce leg fatigue during long practical sessions.
  • Severe Use Certified: Independently tested to BS EN16139 Level 2, this stool is rated for "severe contract" use, exceeding the requirements of standard educational furniture.

Sustainable British Quality

We are proud to supply high-performance, British-made furniture that supports local manufacturing while adhering to the strictest safety standards. By choosing this 100% recyclable one-piece stool, your institution is investing in a greener future without compromising on structural safety or long-term durability.

The Cobolt Standard

  • 50 Years of Heritage: Draw on five decades of experience in supplying the UK public sector with furniture that is certified to withstand the test of time.
  • Free UK Mainland Delivery: We manage all transport logistics at no extra cost, providing a transparent and budget-friendly procurement experience.
  • 10-Year Protection: Every stool is backed by a 10-year structural guarantee, ensuring absolute peace of mind for your facility’s investment.

Where is this 685mm Red One-Piece Stool used?

The Red High Back Senior Stool is a premier choice for University Science Labs, Adult Education Studios, Architecture Workshops, and Sixth Form Breakout Zones. Its bold Red finish provides a modern, high-energy aesthetic that is both practical and professional.

Key Features

  • Jointless Structural Moulding – A singular piece of polypropylene with no fixings to maintain or replace.
  • 685mm Senior Height – Precision dimensioned for adult-height (900mm+) work benches and drafting tables.
  • Anti-Tilt Skid Frame – Integrated rails ensure the stool remains grounded and stable during active use.
  • Severe Use Rated – Meets BS EN16139 Level 2 standards for industrial-grade educational durability.
  • High-Back Lumbar Support – Ergonomic shell helps students maintain focus and reduces postural fatigue.
  • Integrated 40mm Footrest – Encourages correct posture and provides essential support for users at height.
  • Chemical & Water Resistant – Easy-clean surface that withstands spills in art or science environments.
  • 16-High Stacking – Market-leading vertical nesting for effortless room transitions and storage.
UK Manufactured icon
Proudly UK Manufactured
10 Year Warranty icon
10-year manufacturer guarantee
Free delivery icon
Free UK Mainland Delivery

Where is this 685mm Red One-Piece Stool used?

The Red High Back Senior Stool is a premier choice for University Science Labs, Adult Education Studios, Architecture Workshops, and Sixth Form Breakout Zones. Its bold Red finish provides a modern, high-energy aesthetic that is both practical and professional.

Key Features

  • Jointless Structural Moulding – A singular piece of polypropylene with no fixings to maintain or replace.
  • 685mm Senior Height – Precision dimensioned for adult-height (900mm+) work benches and drafting tables.
  • Anti-Tilt Skid Frame – Integrated rails ensure the stool remains grounded and stable during active use.
  • Severe Use Rated – Meets BS EN16139 Level 2 standards for industrial-grade educational durability.
  • High-Back Lumbar Support – Ergonomic shell helps students maintain focus and reduces postural fatigue.
  • Integrated 40mm Footrest – Encourages correct posture and provides essential support for users at height.
  • Chemical & Water Resistant – Easy-clean surface that withstands spills in art or science environments.
  • 16-High Stacking – Market-leading vertical nesting for effortless room transitions and storage.
UK Manufactured icon
Proudly UK Manufactured
10 Year Warranty icon
10-year manufacturer guarantee
Free delivery icon
Free UK Mainland Delivery

The 685mm Red High Back Stool is engineered for senior-level academic environments. Technical dimensions for facility planning are provided below.

Seat Height
685mm
Weight Capacity
125kg
Warranty
10 Years
Specification
Details
Purpose / Benefit
Total Height
1020mm
High-back support for adult users
Total Dimensions
1020mm(H) x 495mm(W) x 530mm(D)
Optimised footprint for senior workstations
Construction Material
Seamless Polypropylene
Rust-proof, chemical-resistant, and jointless
Stacking Height
16 High (approx. 2m)
Maximises storage floor space
Unit Weight
6.6kg
Sturdy yet portable for campus handling
Compliance
BS EN16139 Level 2
Certified for severe institutional use

FREE Delivery to UK Mainland Zone 1

Your order will be delivered on a standard 5 Working Days service.

For all other locations, please email help@coboltfurniture.co.uk for a quote.


  • Made to Order: Many of our products are manufactured specifically for your order. Because of this, returns depend on the product specifics and require prior permission from Cobolt Furniture.
  • Cancellations: We always endeavour to reduce cancellation costs. However, please note a partial or entire charge may be levied to cover material costs and administrative fees if a made-to-order line is cancelled.

FAQs: Professional High-Bench Stools

Q: When should I choose the 685mm height for my facility?

A: The 685mm seat height is designed for use with workstations that are approximately 900mm to 1000mm high. This is the industry standard for university laboratories, adult education studios, and professional workshop environments.

Q: How does the anti-tilt frame protect senior students?

A: At a 685mm seat height, tipping is a major safety risk. Our signature skid-rail design prevents the stool from tilting backwards if a user shifts their weight, ensuring a stable and safe platform for practical work.

Q: Can I clean these stools with medical-grade disinfectants?

A: Yes. The non-porous polypropylene is highly resistant to most school-grade acids and detergents. It can be wiped down quickly to maintain a high level of hygiene in science or food tech rooms.

Q: How stable is a stack of 16 stools?

A: The precision nesting design ensures that the weight of the stack is distributed vertically. This creates a highly stable column that won't lean or tip even when stored at the maximum height of 16 units.

Q: Does the red finish show surface scratches easily?

A: No. The high-impact polypropylene is through-coloured and features a textured finish that is specifically designed to hide surface marks and maintain its vibrant appearance in high-traffic settings.

Q: Is there any assembly required on delivery?

A: No. These stools are delivered fully moulded and ready for immediate deployment. This jointless design means there are no screws to check or tighten, reducing long-term maintenance costs.

Q: Are these stools environmentally sustainable?

A: Yes. They are 100% responsibly recyclable at the end of their life. Additionally, their UK manufacture means they carry a significantly smaller carbon footprint compared to furniture imported from overseas.

Q: Why choose the high-back model for university students?

A: High-back stools offer essential lumbar reinforcement, which is often missing in lab seating. This support helps students maintain focus and reduces back strain during lengthy double-period practicals.

Overview

Product Overview: 685mm Red High Back Senior Stool

This High Back Stool range is the definitive answer to the rigorous demands of modern higher education and professional workshops. Dispatched with Free UK Mainland Delivery, the 685mm Red model combines striking aesthetics with a maintenance-free, industrial build.

Indestructible One-Piece Build

  • Structural Unity: The seamless polypropylene design contains zero fixings or rivets, ensuring the stool cannot loosen or break under the pressure of daily institutional use.
  • Clinical Hygiene: A non-porous, waterproof surface makes this stool ideal for science and food technology suites, as it can be thoroughly disinfected without risk of rusting or absorption.
  • High-Density Storage: Features an industry-leading nesting profile that allows 16 stools to be stacked safely within a 2-metre vertical footprint, saving valuable floor space.

Safety & Posture Focused

  • Anti-Tilt Security: The integrated skid rails provide a widened base of support, preventing users from leaning back or tipping—a vital safety feature for seating at this height.
  • Enhanced Circulation: A built-in 40mm footrest and waterfall front seat edge work in tandem to improve blood flow and reduce leg fatigue during long practical sessions.
  • Severe Use Certified: Independently tested to BS EN16139 Level 2, this stool is rated for "severe contract" use, exceeding the requirements of standard educational furniture.

Sustainable British Quality

We are proud to supply high-performance, British-made furniture that supports local manufacturing while adhering to the strictest safety standards. By choosing this 100% recyclable one-piece stool, your institution is investing in a greener future without compromising on structural safety or long-term durability.

The Cobolt Standard

  • 50 Years of Heritage: Draw on five decades of experience in supplying the UK public sector with furniture that is certified to withstand the test of time.
  • Free UK Mainland Delivery: We manage all transport logistics at no extra cost, providing a transparent and budget-friendly procurement experience.
  • 10-Year Protection: Every stool is backed by a 10-year structural guarantee, ensuring absolute peace of mind for your facility’s investment.

Features & Benefits

Where is this 685mm Red One-Piece Stool used?

The Red High Back Senior Stool is a premier choice for University Science Labs, Adult Education Studios, Architecture Workshops, and Sixth Form Breakout Zones. Its bold Red finish provides a modern, high-energy aesthetic that is both practical and professional.

Key Features

  • Jointless Structural Moulding – A singular piece of polypropylene with no fixings to maintain or replace.
  • 685mm Senior Height – Precision dimensioned for adult-height (900mm+) work benches and drafting tables.
  • Anti-Tilt Skid Frame – Integrated rails ensure the stool remains grounded and stable during active use.
  • Severe Use Rated – Meets BS EN16139 Level 2 standards for industrial-grade educational durability.
  • High-Back Lumbar Support – Ergonomic shell helps students maintain focus and reduces postural fatigue.
  • Integrated 40mm Footrest – Encourages correct posture and provides essential support for users at height.
  • Chemical & Water Resistant – Easy-clean surface that withstands spills in art or science environments.
  • 16-High Stacking – Market-leading vertical nesting for effortless room transitions and storage.
UK Manufactured icon
Proudly UK Manufactured
10 Year Warranty icon
10-year manufacturer guarantee
Free delivery icon
Free UK Mainland Delivery

Safety & Warranty

Where is this 685mm Red One-Piece Stool used?

The Red High Back Senior Stool is a premier choice for University Science Labs, Adult Education Studios, Architecture Workshops, and Sixth Form Breakout Zones. Its bold Red finish provides a modern, high-energy aesthetic that is both practical and professional.

Key Features

  • Jointless Structural Moulding – A singular piece of polypropylene with no fixings to maintain or replace.
  • 685mm Senior Height – Precision dimensioned for adult-height (900mm+) work benches and drafting tables.
  • Anti-Tilt Skid Frame – Integrated rails ensure the stool remains grounded and stable during active use.
  • Severe Use Rated – Meets BS EN16139 Level 2 standards for industrial-grade educational durability.
  • High-Back Lumbar Support – Ergonomic shell helps students maintain focus and reduces postural fatigue.
  • Integrated 40mm Footrest – Encourages correct posture and provides essential support for users at height.
  • Chemical & Water Resistant – Easy-clean surface that withstands spills in art or science environments.
  • 16-High Stacking – Market-leading vertical nesting for effortless room transitions and storage.
UK Manufactured icon
Proudly UK Manufactured
10 Year Warranty icon
10-year manufacturer guarantee
Free delivery icon
Free UK Mainland Delivery

Specification Dimensions

The 685mm Red High Back Stool is engineered for senior-level academic environments. Technical dimensions for facility planning are provided below.

Seat Height
685mm
Weight Capacity
125kg
Warranty
10 Years
Specification
Details
Purpose / Benefit
Total Height
1020mm
High-back support for adult users
Total Dimensions
1020mm(H) x 495mm(W) x 530mm(D)
Optimised footprint for senior workstations
Construction Material
Seamless Polypropylene
Rust-proof, chemical-resistant, and jointless
Stacking Height
16 High (approx. 2m)
Maximises storage floor space
Unit Weight
6.6kg
Sturdy yet portable for campus handling
Compliance
BS EN16139 Level 2
Certified for severe institutional use

Delivery & Returns

FREE Delivery to UK Mainland Zone 1

Your order will be delivered on a standard 5 Working Days service.

For all other locations, please email help@coboltfurniture.co.uk for a quote.


  • Made to Order: Many of our products are manufactured specifically for your order. Because of this, returns depend on the product specifics and require prior permission from Cobolt Furniture.
  • Cancellations: We always endeavour to reduce cancellation costs. However, please note a partial or entire charge may be levied to cover material costs and administrative fees if a made-to-order line is cancelled.

Product FAQs

FAQs: Professional High-Bench Stools

Q: When should I choose the 685mm height for my facility?

A: The 685mm seat height is designed for use with workstations that are approximately 900mm to 1000mm high. This is the industry standard for university laboratories, adult education studios, and professional workshop environments.

Q: How does the anti-tilt frame protect senior students?

A: At a 685mm seat height, tipping is a major safety risk. Our signature skid-rail design prevents the stool from tilting backwards if a user shifts their weight, ensuring a stable and safe platform for practical work.

Q: Can I clean these stools with medical-grade disinfectants?

A: Yes. The non-porous polypropylene is highly resistant to most school-grade acids and detergents. It can be wiped down quickly to maintain a high level of hygiene in science or food tech rooms.

Q: How stable is a stack of 16 stools?

A: The precision nesting design ensures that the weight of the stack is distributed vertically. This creates a highly stable column that won't lean or tip even when stored at the maximum height of 16 units.

Q: Does the red finish show surface scratches easily?

A: No. The high-impact polypropylene is through-coloured and features a textured finish that is specifically designed to hide surface marks and maintain its vibrant appearance in high-traffic settings.

Q: Is there any assembly required on delivery?

A: No. These stools are delivered fully moulded and ready for immediate deployment. This jointless design means there are no screws to check or tighten, reducing long-term maintenance costs.

Q: Are these stools environmentally sustainable?

A: Yes. They are 100% responsibly recyclable at the end of their life. Additionally, their UK manufacture means they carry a significantly smaller carbon footprint compared to furniture imported from overseas.

Q: Why choose the high-back model for university students?

A: High-back stools offer essential lumbar reinforcement, which is often missing in lab seating. This support helps students maintain focus and reduces back strain during lengthy double-period practicals.

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