Make sure that you are well prepared for any situation with the Everstart LF51-4L-77 Top-Post Battery Cable. It is built for use with 6-12-volt varieties. The terminal end of this 4-gauge battery cable is made from tin-plated brass to provide optimum conductivity. The core is made of 100 percent copper. The materials used for this Everstart Battery Cable eliminate the dangers of lead contamination and are RoHS compliant for additional safety.