Ergonomic swivel chair, without arm rests, grey fabric covering. Supplied = flat pack. Cover material = polypropylene. Colour of covering = grey. Frame colour = graphite black RAL 9011. Frame material = nylon. 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 = 550 mm. Fittings = lumbar support. Seat depth = 450 mm. Seat width = 460 mm. Shape of seat shell = lumbar support 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 = ergonomic swivel chairs. Back rest with lumbar support. Classic ergonomic seat. Permanent contact mechanism. Easy care fabric cover. Frame in graphite black RAL 9011. Castors for soft floors as standard. Supplied flat pack - easy self-assembly. Your advantage Comfortable sitting at a great price. To help you comfortably master the tasks of the new millennium.