This Keying Chair is comfortable, easy to move around in and sturdy. The chair comes without arms. Purchase the arm kit and attach only the left or right side, so operator can get close to the keying terminal. 250lb weight capacity. Features Pneumatic height adjustment. Adjustable seat and back. Extra thick seat and back. Fire retardant fabric and foam. Dual wheel casters. Adjustable Metal foot ring. Ships USPS.