This welding lead is assembled using Highly flexible, Made in the USA, Flex-A-Prene cable. All our cable assemblies use over-calculated Electrode Holders, Ground Clamps, and Connectors with an amperage capacity always higher than the assembly amperage rating. This prevents over-heating and increases safety. Information on cable is ident marked so it doesn't fade with time for a better identification even after years of use - Resists abrasion, cut, tear, flame, grease, oil, and water. The is the only welding cable that currently meets SAE J1127. INSULATION: EDPM jacket and paper separator - TEMP RANGE: -50°C to +105°C (-58°F to 221°F) - Rated 600 Volts. ***Before you buy please double-check the type and size of the cable Connector/Receptacle in your welder, Also check the maximum Amperage and duty cycle of your welder and look for a cable assembly that matches or exceeds that amperage rating***