The Genuine BMW Seat Belt Extender Arm Left - 72117334637 is a high-quality, OEM replacement part for BMW vehicles. This product is designed to extend the length of the seat belt, providing a comfortable and secure fit for larger or taller individuals. The extender arm is made from durable materials and is compatible with the left side of the vehicle. It is an essential safety feature that ensures all passengers can properly fasten their seat belts while riding in the car. This product is manufactured by BMW and is an exact fit for specific models.