The Genuine BMW Battery Lead Positive Underfloor (120mm) - 61129297282 is a high-quality battery cable designed specifically for BMW vehicles. It is used to connect the positive terminal of the battery to the vehicle's electrical system. This cable is made with durable materials and is designed to withstand the harsh conditions under the vehicle's floor. It measures 120mm in length and is an authentic BMW part, ensuring proper fit and function. This battery lead is essential for maintaining a reliable electrical connection and ensuring the proper functioning of your BMW's battery.