This product is a genuine BMW left water channel cover, part number 51718220947. It is black in color and is designed to cover and protect the water channel on the left side of the vehicle. This cover is made by BMW and is an authentic replacement part for your BMW vehicle. It is durable and designed to fit perfectly on your vehicle for a seamless appearance. This water channel cover is essential for keeping water out of your vehicle's interior and ensuring proper functioning of the water channel system.