Durable Material: High-quality ABS material on the surface, durable and good insulation. Copper material to ensure the best quality and safety protection. Working Current: 500A. Advanced Intelligent Protection: The smart cable has built-in 5 safety protections against short circuit, reverse charge, over-discharge, reverse polarity, and over-current. Anti-recharge function: Stabilizes the circuit to prevent the car equipment from being damaged due to high current when starting the car. Insulating material, safer and more practical. Please confirm that the product appearance is complete before use.