Mattress Protector Zippered Full 54 x75 x9 Jobst ActiveWear 20 30 Knee Hi from 20 wheelchair height to MSHQ 1594XL from 20 wheelchair height to 30 high * Electrically activated hydraulic cylinders are built into each (4) corner steel legs * Motorized lift system can securely lift 750 lbs no tools required * Seat diameter: 15 ZIPPERED * Full 54 x 75 x 9 * Excellent retail packaging * Protects mattress * Heavy 3 gauge plastic * Individually sealed in a poly bag * Treated with flame retardant * Fits both mattresses and boxsprings up to 9 thick * Notice to California Consumers: WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm *