High Back Chair Features a Back Made From Black Pp (Polypropylene) Fiber Back And Polyester Nylon Mesh, Providing Comfort and Breathability, Fixed Pp Armrests, High-density Molded Foam, a 10mm Plywood, and a Black Pp Shell, 1 Level Locking Position Mechanism, Gas Lift is a 100#6, Belonging to Class 3, Ensuring Reliable Height Adjustment, 320mm Nylon Base, 50mm Black Nylon Casters for Smooth Mobility. Color: Black Check out our latest executive chairs