Black leather upholstery; steel base. Gently curved wood loop arms. Pneumatic seat height adjustment and 360° swivel. Tilt tension and tilt lock controls. Seat: 21-1/4w x 20-3/4d. Back: 21-1/2w x 25h. Overall height 41-1/2" to 44-1/2". Meets or exceeds ANSI/BIFMA standards. basyx™ five-year limited warranty. Shpg. wt. 61 lbs. Alternative casters are available to meet your specific needs. Assembly required. Casters supplied with this chair are not suitable for all floor types.