Flash Furniture HERCULES Series Big & Tall 400 lb. Rated Black Mesh Swivel Task Chair with Height Adjustable Back and Arms Contemporary Big & Tall Office Chair 400 lb. Weight Capacity Mid-Back Design Ventilated Mesh Back Built-In Lumbar Support Ratchet Back Height Adjustment Tilt Lock Mechanism Tilt Tension Adjustment Knob Padded Black Mesh Upholstered Seat 2'' Thick Foam Padded Seat