100% Polyurethane Swivel Function: 360-degree smooth glide swivel allows you to change directions with ease Adjustable Height: Utilize the easy-to-use lever right below the seat to adjust to your preferred height Stable and Sturdy: Large base prevents any rocking or movement caused by swivel or height features Comfortable Design: The soft foam-padded cushions offer extreme comfort, which helps to support and relax your back and body Color Preferences: A unique variety of color and finish options available