Black Mesh Back Office Chair, Mid-Back Design, Black Padded Fabric Seat, Height & Tension Adjustable Lower Lumbar Support, Locking Tilt Control Mechanism, Knee Tilt Control Mechanism, Tension Control, Pneumatic Seat Height Adjustment, Padded Height & Width Adjustable Arms, Heavy Duty Metal Base, Dual Wheel Casters, CA117 Fire Retardant Foam