Multi-function drafting stool Upholstered in Black Crepe fabric Back angle lock allows the back to lock throughout the angel range for perfect back support Seat tilt lock allows the seat to lock through the tilt range Pneumatic gas lift seat height adjustment Large 27" nylon base for greater stability Hooded double wheel casters Adjustable height and width arms rests Strong 20" diameter chrome footring Arm Height: 33.5"-40"H Seat Size: 19.5"W X 17.5"W Seat Height: 26"-29.5"H Overall size: 27"W X 35.5"D X 43.5"- 48"H Weight Capacity: 250lbs.