This full mesh ergonomic drafting chair from Office Star features an Air Grid screen mesh backrest for maximum airflow and support plus a padded Air Grid upholstered seat cushion. Other features include pneumatic seat height adjustment, 360 degree swivel, dual function control that uses two levers, one lever modifies the angle of the backrest while the other modifies forward tilt, height adjustable foot ring and a heavy duty five star nylon base with dual wheel hooded casters. This drafting chair meets or exceeds ANSI/BIFMA standards. Optional adjustable arms available for a minimal charge. Dimensions: Seat Size: 20"W x 19.75"D. Back Size: 19.75"W x 17.75"H. Seat Height Adjustment: 19.5"H - 27"H. Overall: 44.5"H x 20"W x 26"D. Limited lifetime warranty from Office Star. This chair normally ships within 2-3 business days from our CA warehouse.