The Genuine BMW Cover B-Column Upper Left (Alcantara) - 51438060011 is a replacement cover for the upper left side of the B-column in a BMW vehicle. It is made of high-quality Alcantara material, which is a durable and luxurious microfiber fabric. This cover is designed to fit perfectly and seamlessly blend in with the interior of the vehicle. It is an authentic BMW product, ensuring the highest quality and compatibility with the vehicle. This cover is ideal for replacing a damaged or worn out B-column cover, and it can be easily installed without any modifications.