AirWork office swivel chair, with arm rests, synchronous mechanism, black, petrol. Supplied = partially assembled. Cover material = polyester. Colour of covering = black. Back rest colour = petrol. 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 when seated. Back rest angle can be set to 4 different levels using travel limiter. The spring force is automatically adjusted to suit the user's weight, and can also be fine-tuned using the turning handle. Elegant black plastic five star base equipped with load dependent braked double safety castors for carpeted floors. All plastic parts are made with a proportion of recycled plastic, and the individual resources can be separated. Only cardboard/recycled paper is used for the product packaging.