Feature: 1. [Widely Compatible] This jump starter clamp is suitable for most brands of 12V portable jump starter boxes, compatible with most automotive portable jump starters and mobile chargers. 2. [Rapid Car Battery Boost] Quickly jump start vehicles with drained or low battery power using this reliable battery clamp cable, ensuring a quick and efficient start up process. 3. [EC5 Connector] Equipped with EC5 male plug, this car starter clamp is compatible with most 12V battery booster jumper starters featuring EC5 output, providing a reliable connection. 4. [Sturdy Construction] Sturdy clamp adopts tinned copper cable, which offers superior conductivity and durability compared to pure copper, ensuring safe operating. 5. [Easy to Use] Simply connect the red battery clamp to the positive pole of the vehicle battery and the black clamp to the negative pole;. Insert the power line into the socket of the jump starter, start the car, and remove the clamp. Specification: Item Type: Car Jump Starter Clamp Material: Plastic, Copper, Silicone Input Voltage: DC 12V . Package List: 1 x Car Jump Starter Clamp Note: 1. This item cannot be overloaded. Please check the power supply of your device before use.2. Within 30 seconds after starting the vehicle, the product must be removed from the vehicle, otherwise it may cause an accident.3. Please check if your portable power bank can support your car.