100% Polyurethane Product Dimensions: W: 20 x D: 19 x H: 34.5-43 x Seat H: 23.5-32 Swivel Function: Smooth glide swivel function 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 Color Preferences: The Eagle is available in gray or black faux leather upholstered seat, both options come with a black wood back and black metal base Stable and Sturdy: Large base prevents any rocking or movement caused by swivel or height features