The cables are thick gauge for maximum power flow and 20 feet long, providing ample reach between vehicles. They are designed for heavy-duty performance which is suitable for cars. The cables feature heavy-duty clamps with copper-coated jaws and serrated teeth to ensure a secure grip on battery terminals and efficient power transfer. One clamp is red (positive) and the other is black (negative, marked "NEG.") The cables have a no-tangle design, making them easy to handle and store for roadside emergencies.