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! WindyNation's Power-Flex Welding and Battery Cable is an ultra-flexible industrial grade cable that is manufactured in the USA to the highest quality standards. Power-Flex Cable is ideal for welding applications, battery wiring applications, off-grid wind and solar systems, RV & car (audio/stereo) wiring, inverter to battery wiring, and any application that requires an ultra-flexible pure copper conductor. Refer to the photo gallery for a detailed specification chart for each gauge size. Available gauge sizes range from 8 gauge to 4/0 gauge.