Lemeng 2 Piece 90mm Long Battery Alligator Clips, Black Red 100A Insulated Battery Clip Clamp for Car Auto Vehicle Product Name : Car Battery Clip; Material : Rubber, Copper Plated Metal.The battery clip is an electrode clip used by the automobile repair department to charge the battery. The charging cable is connected to the tail of the clip, and the clip is clamped on the positive and negative poles of the battery. Clips are 3.5 inches long .Strong spring loaded jaws that open to 1 inch capacity. Red and black shell are designed for distinguishing positive and negative pole.Couple battery terminals with positive and negative terminals. Great tool for those working in electronic labs and doing electrical projects.Battery clips are made of high quality copper materials, not only durable, wear-resistant, but also conductive. Can be used for auto - replace existing clips on battery chargers of jump start cables