This is a genuine BMW gasket for the door joint bottom rear right side. It is part number 51227011314 and is designed to fit and seal the door joint on the bottom of the rear right side of the vehicle. This gasket is made from high-quality materials and is an exact replacement for the original gasket on BMW vehicles. It is an essential component for ensuring a tight and secure seal on the door, helping to keep out water, dust, and other debris. This gasket is specifically designed for BMW models and is an authentic OEM part.