The Performance Tool W1673 20' 4-Gauge 500 AMP All Weather Jumper Cables are the perfect tool to handle the toughest jump-starting tasks for full size trucks, vans, and SUVs. Featuring red and black PVC-coated insulated clamps for easy identification of positive and negative terminals, these jumper cables provide a safe and secure connection every time. The tangle-free rubber coated cables make handling and storing easy, allowing for quick and efficient jump-starting. The heavy duty copper jaw clamps ensure maximum conductivity and durability, providing a strong and reliable connection between the two vehicles. These jumper cables are suitable for use in all weather conditions, with an operating temperature range of -13 to 158 degrees F (-25 to 70 degrees C), making them an essential addition to your vehicle's emergency kit.