This is a genuine BMW cover for the window frame of the rear right door. The part number is 51357264362. This cover is specifically designed for the SSR (Side Seat Restraint) version of the door. It is made from high-quality materials and is an exact fit for your BMW vehicle. This cover is an essential component for maintaining the integrity and functionality of your door's window frame. It is a reliable and durable product that is manufactured to BMW's strict standards.