Sumax tells us its four gauge fat and flexible cables will transfer more cranking power with the least amount of amperage drop for your Harley Street 500 or 750. Over 1000 bare strands of copper are covered with a special vinyl insulation that is covered by a synthetic thermo-rubber jacket. Sealed and insulated black heat shrink tubing means moisture proof. The two cable kit is $35.95 Sumax battery cables are made in the U.S.A.