Black leather upholstery; steel base. Gently curved wood loop arms. Pneumatic seat height adjustment and 360° swivel. Tilt tension and tilt lock controls. Seat: 20-1/2w x 19-3/4d. Back: 20-1/2w x 26h. Overall height 39-7/8" to 43". Meets or exceeds ANSI/BIFMA standards. basyx™ five-year limited lifetime warranty. Shpg. wt. 43 lbs. Alternative casters are available to meet your specific needs. Assembly required. Casters supplied with this chair are not suitable for all floor types.