Executive Office Swivel Chair, High Back Design, Made of Eco-Friendly Materials, Overstuffed Padded Seat and Back, Built-In Lumbar Support, Tilt Tension Control, Spring Tilt Control Mechanism, Waterfall Seat Promotes Healthy Blood Flow, Pneumatic Seat Height Adjustment, Padded Gun Metal Nylon Loop Arms, Heavy Duty Gun Metal Nylon Base, Dual Wheel Casters, Black LeatherSoft Upholstery, LeatherSoft is leather and polyurethane for added Softness and Durability, CA117 Fire Retardant Foam