Blow-molded Plastic Seat And Back With Textured Finish * Rustproof High-strength Polished Aluminum Frame * Heavy Duty Chair Supports Up To 400 Lbs. Weight Capacity * No Tools Necessary For Assembly * Specifications: Seat Size: 17.75 X 16.75 * Seat Height: 17 - 21 * Base Width: 22 * Base Depth: 19.5 * Floor To Top Of Back: 31.5 - 35.5 * Weight Capacity: 500 Lbs. *