Homycasa Ergonomic Mid Back Executive Office Fabric Computer Task Desk Chairs Nylon Base (GREY) Seat Size: 16.9"(W) x 17.3"(D) Back Height Size: 17.3" Adjustable Height: 15.7" - 20.5" Chair Height:33.9" - 38.6"; Weight Limit: 265LB Mid back fabric upholstery; Swivel pneumatic padding