Highly flexible annealed 30 gauge bare copper conductor insulated with an EPDM jacket and paper seperator. Flex-A-Prene welding cable is designed for all welding applications where a stinger/whip, leads, and grounds are used. Operating temperatures range from -50° C to+105° C (-58° F to +221° F) and is rated to 600V. Cable is sequentially marked and is made in the USA.