Standard 80-230 Lbs A Self-powered Lifting Cushion That Converts An Armchair Into An Automatic Lifting Chair Lifts Up To 80% Of Users Weight 10 High Uses High Density Memory Foam To Provide A Comfortable Seating Surface Portable Unit Includes Built-in Handle And Black Waterproof Cover Seat Dimensions: 19 D X 17 W 1 Year Warranty Hcpcs Suggested Code: E0629