This product is a Genuine BMW Trim Window Frame Top Door Front Left, with a gloss black finish. The part number is 51138022175. It is a high-quality replacement part for your BMW vehicle, designed to fit perfectly and provide a sleek and stylish appearance. It is made of durable materials and manufactured to the highest standards, ensuring long-lasting performance and reliability. This trim piece is specifically designed for the front left door of your BMW and is an essential component for maintaining the overall look and functionality of your vehicle.