Black pu covered computer chair with gas lift adjustable seat height, it is over ten years old and has a tear on the front edge and wear marks on the seat and arm rests but still solid and fully useable. Measurements: Seat height at lowest is 43 cm and at highest is 53 cm. Maximum width from arm rest to arm rest is 64 cm and the height is 110 cm to the top of the back rest from the floor. It does not come apart. Buyer to collect.