Ergonomic Swivel Drafting Stool, 38-1/4" to 42-3/4" adjustable height, 250 lb. weight capacity, low back design, contoured seat and back, pin dot patterned polyester upholstery, back depth adjustment knob, accordion back cover, without arms, adjustable cylinder heights: 22-1/2" to 27" or 26" to 30-1/2", height adjustable black foot ring, CA117 fire retardant foam, heavy duty black nylon base, dual wheel casters, gray (assembly required) (in stock items usually ship within 24 hours)