Lorell Executive Airseat Chair, 25-1/2"x26-1/2"x46-1/2"-49", Black Executive Airseat Fabric Chair offers advanced technology airflow fabric that is highly breathable so you have the sensation of sitting on air. Amazing new foam and fabric provides firm support while maintaining natural curve of spine. Other features include aluminum with black cap base, 50mm dual wheel nylon casters, pneumatic seat-height adjustment, 360 degree swivel, tilt, tilt tension and tilt lock. Headrest is not removable. Seat size is 21" wide x 21" deep x 3-3/4" high. Seat-to-floor dimensions are from 19" to 22-1/2".