25-Foot 2/OTT Century Industrial Full Copper Battery Booster Cables - Made In USA Tangle free, twin line construction saves time and confusion 100% copper conductors, annealed, soft drawn and bunch stranded for maximum flexibility Pliable cold weather Rubber Flex jacket rated at -58F / -50C 1000 AMP direct contact full copper clamps Triple polarity identification on jacket and clamps ensure safe hookups