The Genuine BMW Outer Weatherstrip Rear Left Door (Chrom) - 51227115421 is a high-quality weatherstrip designed specifically for the rear left door of BMW vehicles. It is made from durable materials and has a chrome finish for added style. This weatherstrip helps to seal the door and prevent water, dust, and other debris from entering the vehicle. It is an authentic BMW product and is designed to fit perfectly on the designated door. This weatherstrip is an essential component for maintaining the integrity of the vehicle's interior and ensuring a comfortable driving experience.