Product Details Seat Dimensions: 17 inches W x 16 inches D. Front Locking Adj from: 11.5 inches to 15.5 inches. Overall Width: 20.5 inches. Weight Capacity: 300 lb. Height: 5 inches. Increases height of seat 5 inches. No tools required. Products for an independent life. Increases the height of the toilet to assist users who have difficulty sitting or bending. Heavy duty molded plastic - easy to clean. Front locking mechanism for easy installation. Rear anchoring system for maximum stability. No tools required. Made in China.