The Energizer Professional Series of Heavy Duty Jumper Cables are suited for all vehicle types including full sized trucks, vans, and SUVs. These cables are extra long to help you stay safe on the roadways as you can now jump or be jumped from behind a vehicle, eliminating the hassle of having to nose both vehicles close together. The clamps are color-coded (Red for Positive, Black for Negative) and coated with a PVC insulation to ensure your clamps last a lifetime. Tangle-free cables remain flexible even at -40°C. Heavy duty copper clad aluminum, Suitable for all weather use. 2 year warranty.