The adapter case is made of ABS plastic for long-lasting durability. The adapter assembly is crafted from pure copper for enhanced conductivity and safety. It's also coated with flame-retardant material for added protection. The cleverly designed dual clamps optimize conductivity and pulling strength. 1.8m/12awg improved thick wire offers lower resistance, faster transmission speeds, and reduced loss. Suitable for 12-24V voltage range. Step 1: Connect the red clamp to the positive (+) terminal and the black clamp to the negative (-) terminal. : Insert the battery into the battery adapter and you're ready to go. Step 3: Once the vehicle starts, be sure to remove the clamps within 28 seconds! Compatible with: for 18V P102, P103, P104, P105, P106, P107, P108, and P109 batteries. Color: As Shown Material: plastic Package Contents: 1 x Jumper Cable(battery not include) 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.