Simply use the variation options to (1) select the cable gauge size you want and (2) select the insulation color(s) and cable length you want. 100% Made in the USA cable. Ultra-flexible, SAE J1127 approved, PURE copper cable manufactured and annealed to ASTM standards. Please see the photo gallery for a detailed specification chart. Rated up to 600 volts, operating temperature: -58°F to +221°F, flexible, solvent repellent, abrasion resistant EPDM insulation. WindyNation Power-Flex welding/battery cable is a premium grade, PURE copper cable manufactured to the highest standards right here in the USA!