SOFT SITNESS Art G office swivel chair, synchronous mechanism, with arm rests, grey. Supplied = partially assembled. Model = upholstered back rest. Seat colour = grey. Fittings = lumbar support. Frame colour = black. Frame material = plastic. Seat mechanism = synchronous mechanism with weight adjustment, 3D Sitness seat joint. Frame design = with castors. Seat height = 440 - 520 mm. Type of arm rests = with arm rests. Back rest height = 560 mm. Seat depth = 460 mm. Seat width = 440 mm. Shape of seat shell = contoured seat. Conforms to = EN 1335 1-2. Seat material = polyester. Design of castors = castors for soft floors. Max. load = 110 kg. Period of use/day = up to 8 hours. Product type = office swivel chairs. Moving seat due to Soft Sitness technology. 100% recyclable - owing to the use of single grade plastics. Infinite seat height adjustment. Mesh back rest with new padding technology and with height adjustable lumbar support. Including arm rests with an adjustable height and width