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, height adjustable padded 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, navy blue (assembly required) (in stock items usually ship within 24 hours)