The Genuine BMW Finisher Window Frame Top Door Rr Lt is a replacement part for the rear left window frame on BMW vehicles. It is made from high-quality materials to ensure durability and a perfect fit. This finisher is designed to cover and protect the top edge of the door when the window is rolled down. It is an authentic BMW product, ensuring the same quality and performance as the original part. This finisher is essential for maintaining the sleek and stylish appearance of your BMW.