This rugged, heavy gauge extension cord is built for durability and performance in all weather conditions. The cord is composed of 3 conductors, each containing 65 strands of pure 30 gauge copper wire. The conductors are encased in a thick vinyl jacket that won't crack or become brittle, and remains flexible in temperatures below freezing. The jacket is oil- and grease-resistant, and is rated at F2 for flame resistance. Durable molded connectors provide maximum resistance to cord/plug separation.