Operator swivel chair, back rest height 520 mm, permanent contact mechanism, contoured seat, blue. Supplied = flat pack. Cover material = Trevira CS, flame retardant. Colour of covering = blue. Frame colour = black. Frame material = powder coated aluminium. Seat mechanism = permanent contact mechanism. Frame design = with castors. Height adjustment range = 420 - 550 mm. Type of arm rests = without arm rests. Back rest height = 520 mm. Seat depth = 450 mm. Seat width = 460 mm. Shape of seat shell = contoured seat. Conforms to = DIN EN 1335 part 1 - 3, DIN EN 12527+DIN EN 12529. Design of castors = castors for soft floors. Max. load = 110 kg. Period of use/day = up to 6 hours. Product type = operator swivel chairs. Easy care Trevira CS fabric cover, flame retardant (meets fire safety standard EN 1021, parts 1 + 2) Aluminium frame, powder coated in black. Castors for soft floors as standard. Your advantage Cost effective office swivel chair with all the essential features.