The Continental Serpentine Belt Kit - 135370 is a comprehensive kit designed for servicing a car's serpentine belt. It includes several essential components that work together to ensure the smooth and efficient operation of the belt. The kit contains a serpentine belt, tensioner pulley, idler pulley, and several other components that help to keep the belt in place and functioning properly. Additionally, the kit may also include a tensioner tool, installation instructions, and other necessary hardware. This kit is suitable for various car models and offers a convenient and cost-effective solution for maintaining the serpentine belt.