This drafting stool with back is made with a durable polyurethane seat and back covered by microcellular foam for a long-lasting, comfortable sitting experience. Its footrest mounts securely to the base, while a paddle lever and ergo knob adjust the chair tilt and back height to fit the users preference. To complete the design, the pneumatic seat lift adjusts the seat height from 17" to 35" tall for a personalized fit.