Anji Modern Furniture 8018-BK Fully Adjustable Mesh Office Computer Chair with Adjustable Lumbar Support, Armrests, Headrest and Multi-Position Recline Control, Black Wheels Heavy duty office chair, 280 lbs. weight capacity Ergonomic design for all-day comfort and support Tilt tension control, locking knee-tilt control mechanism Overall size: D 22.0 x w 25.2 x h 45.7-49.6 inch, back size: L 81.9 x w 20.9 x t 1 inch, seat size: L 20.1 x w 19.9 x h 3.5 inch Ca117 fire retardant foam, 1-year limited warranty