Manufactured from 4-gauge, 1,650-strand tinned copper wire with a super flexible silicone jacketUnique lug design (99.9% pure electrolytic copper) provides a positive connection with greater conductivity and dependable serviceThese cables will deliver more cranking power with less voltage drop than any cable on the market todayAvailable in blackCables are available in kits or individuallyKits include cables for required stock applicationsIndividual cables can be used for universal/custom positive or negative applicationsMade in the U.S.A.NOTE: Cables do not have auxiliary wire unless noted.