The Genuine BMW Finisher Side Window Rear Left (Gloss Black) - 51377377891 is a high-quality, OEM replacement part for BMW vehicles. It is designed to fit the rear left side window and has a glossy black finish. This finisher is made from durable materials and is an exact match to the original part, ensuring a seamless and professional look. It is a genuine BMW product, meaning it is manufactured to the highest standards and will provide reliable performance and longevity. This finisher is perfect for replacing a damaged or worn out part, or for adding a sleek and stylish touch to your BMW.