Product information: -Insulation material: PVC-Clamp material: Copped coated steel-Cable outer diameter: 12mm-Suitable for engine displacement: 4500cc-Fuel type: Petrol or diesel-Cable length: 6m -Color: Red + Black Contents in Box: - 1 x 3000AMP 6M Surge Protected Long Heavy Duty Car Jump Booster Cables More information about product: This heavy duty construction jumper cables have a thick inner core, connect and start your dead or weak car battery fast. ETL Certified and stamped, Suitable for car, coupe, sedan, full size SUV, full size van, truck, farm equipment and more It has four giant alligator clamps with strong jagged teeth and springs for excellent grip force. The jaws are strong and make connection easy with better conductivity and tension. The clamps are coated with insulating rubber making it safe to use. This long enough that you have the ability to access from various locations around the car, it easily reaches the battery on the opposite side of the vehicle to the jumper's battery. No longer worry that front of your car is blocked and the person help jumping your car has to park close to you. The booster cable is made with premium PVC which is resistant to freezing, cracking & folding and doesn't tangle. The cable stays flexible even in very cold weather(-40 /-40 ). Perfect for anyone looking for a quality set to carry in their vehicle for emergencies or to help someone else. The smart protector will protect from short circuiting ,when connection is successful the "ok" green LED will light up, if you have applied the clamps incorrectly the smart protector will alarm and the "Wrong" red LED will light up to notifying you of error.