This quick disconnect battery terminal is made of tinned copper and, as a result, has good conductivity and corrosion resistance, but it can also reduce voltage distortion and transmission loss. Designed for multiple cable connections, it has 4 positions for connecting cables. They connect securely to the battery poles without the use of tools, simply by pressing down the lever and tightening-securing manually. The terminal connectors after the battery are easy to identify with positive red and negative black labels, offering safe and reliable use with the shutdown protections. The tin brass coating prevents brass oxidation caused by high temperature and other complex environments, protecting your battery. Ideal for cars, trucks, RVs, boats, trailers, and other vehicles that stand for long periods without use.