Extra Heavy-duty cold weather extension cord. Rated for -58 Deg (degrees) F (Fahrenheit) to 221 Deg F. Built to stay flexible under the most extreme temperatures. All-copper wire design recommended for use with extra heavy-duty equipment and tools. High visibility bright yellow jacket provides extra safety as well as prevents loss and theft on jobsites. Durable oversized, clear molded plug prevents accidental bending or breaking. UL (Underwriter's Laboratories) listed.