The Steno Chair is upholstered in Black Crepe fabric. It is protected with a durable plastic that prevents tears to the seat back and bottom. It has a pneumatic gas lift seat height adjustment, allowing for versatile adjustment of the seat height to suit your comfort and work environment. The five star nylon base provides stability and allows for smooth movement. The hooded double wheel casters make it easy to shift directions. The one touch seat adjustment allows easy adjustment of the seat height to suit your comfort and work environment.