Big & Tall Swivel Office Chair, 400 lb. Weight Capacity, 22'' Extra Wide Seat, Made of Eco-Friendly Materials, 5'' Thick Foam Padded Seat and Back Provides Added Comfort, Back Tilt Locks in any available position, Back Height Adjustment, Swivel Control Mechanism with Asynchronous Back Tilt, Pneumatic Seat Height Adjustment, Heavy Duty Black Metal Base, Dual Wheel Carpet Casters, Black LeatherSoft Upholstery, LeatherSoft is leather and polyurethane for added Softness and Durability, CA117 Fire Retardant Foam