Easy to use: the 12V quick release car battery clamps is made of high quality aluminium alloy, which is comfortable to hold, insulated and safe and can be used in most vehicles. The handle can be easily and quickly unscrewed. After unscrewing the handle, simply clip the battery pole into the correct position of the battery. After connecting the battery, tighten the handle to complete the installation without additional tools. .High Quality Battery Terminal SetThe positive and negative battery terminals have excellent conductivity, reducing voltage distortion and transmission losses. Now you can easily install and replace your car battery with our battery poles. .Easy to IdentifyPositive (Red) 16.8-18.2mm, Negative (Black) 15.5-17mm. The quick connection of the car battery is easy to recognise and avoids the risk of electric shock. The connectors are of good quality and fit most standard size car batteries. .Long service life: the battery clip is made of high-quality brass, which is strong and durable, has good corrosion resistance and rust resistance and has a long service life. Double iron coated copper screws make the battery terminals stronger after installation. Car battery poles are perfect for anyone who needs to replace their car with a new battery. Battery clip with strong conductivity and abrasion resistance.