The PetSTEP Side Entry Support Strap allows the PetSTEP Folding Ramps (model #222G and #222K) to be used in the side door of your sedan or SUV. One end attaches to an existing slot at the top of the PetSTEP ramp, while the other end hooks over the door frame. The ramp would normally have only one corner resting on the back seat, causing the ramp to tip. The Strap attaches to the unsupported corner, stabilizing the ramp. The strap is made of heavy-duty nylon with a cam adjustment buckle. The door hook is PVC clad so it won"t slip or mar your car"s finish.