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