Specifically designed for larger individuals. Provides comfort and long-lasting performance for people weighing up to 450 lbs. Integral lumbar support for back comfort. Unique upholstery capped arms rotate up and out of the way. Five-star base has casters for easy mobility. Recommended Applications: General Office & Task Specialty&mdashBig & Tall 24/7 Seat/Back Color: Black Features & Functions: 360° Swivel Integral Lumbar Support Pneumatic Seat Height Adjustment Tilt Tilt Lock Tilt Tension Arms Included: Yes.Unit of Measure : Each