This diamond task chair is the perfect mobile seating solution for any office. It features an extra large seat complete with wide back cushions and has an overall weight capacity of 275 pounds. Its contoured back provides excellent spinal support, so users can get through those long days without the extra strain. Additional features include pneumatic gas lift seat height adjustment, black upholstery, and adjustable back height and depth. For your convenience, the unit ships ready to assemble.