High Back Asynchronous Chair. Classic range if the most popular operator chair types for general office use that gives you just that little bit extra. Rich Wool Blend popular for commercial interiors. 67% Wool, 33% FR Viscose Blend, 75000 rubs. EN 1021-1 Cigarette Product Certificate; EN 1-21-2 Match Product Certificate. BS7176 Medium Hazard Product Certificate; BS 5852 Section 4 Crib 5 Product Certificate. Tested by FIRA to meet BS EN1335: (2000): Part 2 for strength, safety and stability. Computer or at-desk tasks are part of work, typically 7-8 hours a day. Ideal for secretarial, word processing, clerical, professional and accountancy jobs. Up to 18 stone/114kg. Asynchro movement allows you to move the seat back to any position you choose, to maximise comfort. Users can adjust height of seat to maximise support for legs. Optional fixed arms, Height-adjustable arms and De Luxe Height-adjustable arms available. Seat WxDxH: 460x450x480-590mm. Backrest Height: 520mm. Colour Charcoal.