P.T. Rail Angled Mattress Overlays Toppers from 20 wheelchair height to MSHQ 1885 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 5 H (safety rails down) * Safety rails up: 43 * Capacity: 450 lbs Features an adjustment screw to customize rail angle to suit even the steepest stairs * Easily folds up to store out of the way and will not accidentally fall down causing an impace injuty * A machined precision tension fit hinge creates stable rock solid support * An excellent support option for sunken living rooms decks patios or 2 and 3 step stairs in garages * The P Rail Angled can be mounted to a P