DESIGNED FOR RUGGED OUTDOOR USE - Flexible vinyl covering protects this RV power cord against moisture, sunlight, and wear and tear from outdoor elements. SUPERIOR CONDUCTIVITY - Iron Forge Cables 30 Amp RV Cord is constructed from heavy duty 10 gauge copper wire for superior conductivity. REINFORCED BLADES protect the 30 amp RV extension cords prongs from bending or breaking. Slip resistant design. Temperature Range: -40°F to +140°F. UL CERTIFIED 10 gauge heavy duty wire, 25 foot, 30 amp male to 30 amp female, 125 volt, 3750 watt. VETERAN OWNED. LIFETIME REPLACEMENT WARRANTY - Iron Forge Cable stands behind all of its RV cords 100%. Register online for a free lifetime warranty.