The Genuine BMW Seal Door Gap Door Rear Bottom - 51357178017 is a high-quality seal designed specifically for BMW vehicles. This seal is used to fill the gap between the rear bottom of the door and the body of the car, providing a tight and secure seal. It is made from durable materials to ensure long-lasting performance and protection against weather elements. This seal is an authentic BMW product and is designed to fit perfectly on your vehicle. It is an essential component for maintaining the integrity of your car's interior and preventing any water or air leaks.