Premium Conductivity & Durability jump cable for car:Made with copper-clad wire and fire-resistant plastic shell, ensuring excellent electrical conductivity. The chuck part features rust-proof copper alloy material, delivering long-lasting performance for heavy-duty jump-starting needsHigh-Temperature Resistant & Flexible Wiring High-Temperature Resistant & Flexible Wiring:Equipped with tinned silica gel wire that is soft, high temperature-resistant, and offers better conductivity. Ideal for extreme conditions, ensuring reliable power transmission during every jump-start Strong Grip & Reliable Springs:Fine steel springs in the clamps provide “more bite” – a firm, stable grip on battery terminals. Prevents slipping or disconnection, making it a trustworthy tool for cars, RVs, and more 14 in 1 Safety & Intelligent Protection:Built-in multiple protections: reverse polarity, over-current, over-voltage, short-circuit, and spark-proof. The smart design ensures worry-free operation, even for beginners Easy to Use with Force Start Function:Follow the simple steps: connect to jump starter, attach to battery, start the engine, and remove clamps. Includes a force start button for stubborn dead batteries, making it a must-have emergency tool Warm Tips For Usage: If you used the jump starter cable to your jump starter, the cable send beep sound, press the force start button, and then try again to jump starter your car. jump starter cable,jumper cable clamps, jump cables, jump start cable, jump cable for car