The Power Products 13 /0Top Stud Stackable Battery Cable ensures you are Ready for the Road Ahead, providing heavy duty Group 31 stud batteries a proper jumpstart, with the allowance of connecting multiple batteries. For a smooth start up for your truck, position tin plated copper lugs on the top stud to best boost the charge of the battery. This battery jumper cable is built with heavy duty requirements in mind, being corrosion resistant with superior conductivity, which boosts current transfer to your vehicles power system. FleetPride is your First Click in Heavy Duty.