This product is a genuine BMW Channel Seal Outer Door Rear Left, specifically designed for the rear left side of the vehicle. It is finished in a glossy black color and has a part number of 51357260543. This channel seal is used to provide a tight seal between the door and the vehicle body, helping to prevent water, dust, and noise from entering the interior. It is an authentic BMW product and is made with high-quality materials to ensure durability and a perfect fit. This channel seal is an essential component for maintaining the integrity of the vehicle's door and ensuring a comfortable driving experience.