1Rugged Construction: The booster jumper cable features a sturdy battery clamp made from copper, ensuring durability, excellent conductivity, and a firm grip. Red wire connects to positive, black wire connects to negative. 2Compatibility: This jumper cable is compatible with most vehicles. The clamps can be directly connected to the car battery and high power appliances, effectively protecting the car cigar lighter. 3Stable Performance: The jumper cable uses tin plated copper terminals, exhibiting superior stability, high conductivity, and excellent oxidation resistance. It's designed to power DC12V and DC24V appliances, making it handy for emergencies. 4Emergency Ready: With its sturdy metal clips, this booster jumper cable is always ready for any emergency. You can keep it in your vehicle to address unexpected battery issues during your journey. 5Multipurpose: Along with jumping the car battery, the booster jumper cable facilitates the use of high power appliances and ensures the necessary guard for the car's electrical system. 2 xBooster Jumper Cable