AirWork office swivel chair, with arm rests, synchronous mechanism, black, white. Supplied = partially assembled. Cover material = polyester. Colour of covering = black. Back rest colour = white. Frame colour = black. Frame material = plastic. Seat mechanism = synchronous mechanism with sliding seat. Frame design = with castors. Height adjustment range = 420 - 540 mm. Type of arm rests = with arm rests. Back rest height = 575 mm. Seat depth = 410 - 485 mm. Seat width = 455 mm. Shape of seat shell = contoured seat, sliding seat. Conforms to = EN 1335 1-2. Design of castors = castors for soft floors. Max. load = 110 kg. Period of use/day = up to 8 hours. Product type = office swivel chairs. Back rest with actively breathing mesh cover and height adjustable lumbar support. Synchronous mechanism that adapts to the user's weight with fine tuning and sliding seat (seat depth adjustment) The height and width of the arm rests are adjustable. Comfortable contoured seat for an optimal posture wh