This product is a genuine BMW side window for the rear right door. It is black in color and has a part number of 51357163752. This is a high-quality replacement part made specifically for BMW vehicles. It is designed to fit and function just like the original window, providing a secure and weather-tight seal. This product is durable and long-lasting, ensuring reliable performance for years to come. It is an essential component for maintaining the overall appearance and functionality of your BMW vehicle.