Giantex Adjustable Office Chair Accent Computer Desk Task Mid Back Rolling Black Overall Dimension: 25.1"X 24.4"X 36.6"-39.7"(L XWxH) Backrest Size:19.3"X 21.2"(W XH) Seat Size:19.3"X 21.2"(L XW);Adjustable Seat Height:16.5"-20.4" Load Capacity: 264 LBS Color:Black