HON HON3301SS11T Memory foam in the seat cushion adapts to your body to reduce stress on pressure points. Fully upholstered back for a neat appearance. High-resilient base adds extreme durability. Casters supplied with this chair are not suitable for all floor types. Alternative casters are available to meet your specific needs. Seat/Back Color(s): Black; Features & Functions: 360 Swivel; Pneumatic Seat Height Adjustment; Tilt; Tilt Lock; Tilt Tension; Arms Included: Yes; Recommended Applications: Executive & Management.