The GoodAll 12-296 Bumper Box and plug kit saves time and hassle when needing a jump start by providing connector-to-connector boosting. The stainless steel box installs on the bumper of the service truck, and connects to the battery with 12-foot 1/0 gauge install leads. The included 71-402 plug kit contains a 600 series plug (red) and 1/0 gauge contacts to allow for quick, convenient, cost effective jump starting.