The Genuine BMW Slide Element Rain Channel-A-Pillar is a replacement part for BMW vehicles. It is designed to fit the A-pillar of the car and helps to channel rainwater away from the interior of the vehicle. This prevents water from leaking into the cabin and causing damage. The slide element allows for easy adjustment and positioning to ensure proper water drainage. It is made from high-quality materials to ensure durability and longevity. This product is an authentic BMW part and is essential for maintaining the functionality and appearance of your vehicle.