Ergonomic Swivel Task Chair, 34" to 38-1/2" adjustable height, 250 lb. weight capacity, mid-back design, contoured seat and back, LeatherSoft upholstery, back depth adjustment knob, accordion back cover, without arms, CA117 fire retardant foam, heavy duty black nylon base, dual wheel casters, black (assembly required) (in stock items usually ship within 24 hours)