The battery clamp is made of excellent copper material to ensure better conductivity and provide safety .<br> After the automobile is started, the anti back charging current is less than 1A, the clamp is safer and more reliable.<br> Connect the red clip with the black clip, there is no damage or spark when powered on, provides short circuit .<br> The battery wire clip is made of excellent ABS plastic, with good insulation, resistance and aging resistance.<br> The test wire clamp is used for emergency automobile start and battery booster cable, with strong practicability<br> This battery clamp is made of high-quality copper, ABS plastic shell, and thickened silicone wire as raw materials.<br> Therefore, it has good electrical conductivity, water resistance, and wears resistance performance.<br> This battery clamp has a stable 12V voltage, it can supply power smoothly to protect the car starter.<br> Notice:<br> When Green light,forbid the short circuit or reverse connecting to car battery<br> Cautions:<br> Do remove the clamps in 30s after the vehicle started.<br> Do not connect and/or attach two clamps together, it may cause danger!<br> Keep this appliance away from children.<br> Note:<br> Installation guide not included,<br> Please check as much as possible to make sure the item is what you need.<br> Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use<br> Colour:Black<br> Material:ABS<br> Package Contents:<br> 1 x Emergency Battery Jump Cable Clamps<br> Only the above package content, other products are not included.<br> 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.