GM Genuine Parts Battery Cables are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These battery cables are high quality, copper electric cable with a cast lead terminal connection at the battery end of the cable. They feature durable insulation that is designed to help resist harsh under hood environments. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE). ? PROPOSITION 65 WARNING: Battery posts, terminals and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. Batteries also contain other chemicals known to the State of California to cause cancer. Wash hands after handling.