The Genuine BMW Battery Roll Bar - 61217601939 is a component used in BMW vehicles to secure the battery in place. It is made of high-quality materials and is designed to fit perfectly in the designated area of the vehicle. This battery roll bar helps to prevent the battery from moving or shifting during driving, ensuring safe and reliable performance. It is an essential part of the vehicle's electrical system and is recommended for replacement if damaged or worn out. This product is an authentic BMW part and is compatible with various BMW models.