The Performance Tool W1671 8GA x 12' Jumper Cables are designed for medium-duty use with passenger cars and pick-up trucks, making them a reliable choice for emergency situations on the road. The red and black PVC-coated insulated clamps make it easy to identify and connect to the appropriate terminals on your vehicle's battery, while the tangle-free rubber coating ensures easy handling, even in cold weather. The heavy-duty copper jaw clamps provide a secure connection to your vehicle's battery terminals, ensuring a reliable jump start. These jumper cables are built to withstand all weather conditions, with an operating temperature range of -13 to 158 degrees F (-25 to 70 degrees C). They're a must-have for any vehicle owner who wants to be prepared for roadside emergencies.