Anji Modern Furniture Mid-Back Swivel Mesh Seat Computer Lumbar Support Task Chair, Height Adjustable, 8075-BK Ergonomic mid back mesh computer desk chair, 200 lbs. weight capacity Built-in lumbar support and padded seat for all-day comfort and support 360-degree swivel, dual smooth-rolling nylon wheel casters, assembly instructions included Overall size: D 23 x W 22 x H3 6-39.8 inch seat height: 18.3-22 inch, back size: H 24 x W 17.7 x T 0.8 inch CA117 fire retardant foam, 1-year limited warranty