Features: Connect the red battery clamp of jumper cable to the vehicle#39;s positive (+) battery and connect the black to the negative (-) pole; Plug the clamp EC5 into the jumper starter#39;s socket; Starter the vehicle. Support 5 protection functions, short circuit protection/reverse polarity protection/overdischarge protection/overcurrent protection/reverse charge protection, safer to use. Made of eo-friendly materials, it has nice durability, wear resistance and nice insulation effect. Bold tinned copper core, it is high temperature resistant. With DO anti-reverse insertion design, if the positive and negative connections are wrong, it will automatically alarm, improving the safety of use. Universal accessories for car emergency starter, compatible with most 12 V jumper starters. Specifications: Material: Metal + Plastics Voltage: 12 V Length: 350mm/ 13.8in Weight: 100g/ 3.5oz Packing List: 1 * Car Battery Clip