This office chair is upholstered in black integral skinned urethane foam that is wear and puncture resistant. Multi-use polyurethane chair has an 18″W x 17″D x 1-1/2″ thick seat with waterfall edge design that takes pressure off of the knees. Seat height adjusts from 15-3/4″ to 21″ using pneumatic height control. The 17″W x 12″H back is height adjustable to help maintain a proper posture. Strong 5 blade base includes both casters for mobile use and glides for stationary use. Brand is Interion By Global Industrial. 2 Year Limited Warranty.