The adapter box is constructed from ABS plastic material, ensuring long-lasting durability. The adapter component is meticulously crafted from pure copper, significantly enhancing conductivity and safety. Externally wrapped in flame-retardant materials for added protection. Dual grips are ingeniously designed to optimize conductivity and tension. [Easy to Use]: Step 1: Connect red clamp to positive pole (+), black clamp to negative pole (-) : Insert battery into battery adapter to use it. Step 3: After the car starts normally, be sure to remove clamp clip within 28 seconds! please read all the instructions carefully and follow the steps [Important Tips]: Strictly follow the operational sequence of the emergency . your battery is fully before jump starting. Follow the correct connection to avoid potential damage or safety risks. Disconnect the cables promptly after the car starts to prevent overheating. If the car doesn't on the , please wait a few minutes and try again Hign-concerned Chemical:None Model Number:Igniter Jump for Accessory Type:Battery Accessories Fit for 18V Battery Color:As Shown Material:ABS 1 * Car Booster Cable Package Contents: 1*Car Booster Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.