Ergonomically Contoured Mesh Back Drafting Stool with Arms, Multiple Colors Overall dimensions: 22"W x 22"D x 42.5"-46.5"H / Heavy-duty drafting kit Ergonomically contoured black mesh back / Height adjustable arms / Back size: 17.25"W x 17.5"H 3" thick gray fabric upholstered seat / Arm height: 7"-9.75"H / Height adjustable foot ring Pneumatic seat height adjustment / Seat height: 26"-30"H / Seat size: 18"W x 17.25"D Heavy-duty dual-wheel casters / Heavy-duty nylon base / Drafting stool with arms