Molded with electroplate copper terminal in order to avoid surface oxidation effectively. Used 10AWG*3 stranded copper inner wire, support each output max 30 Amp loading. RV Camper 50A 14-50 male plug with handle. Travel Trailer 30A TT-30 female receptacle with handle. American standard Household regular 15A 5-15 female receptacle. Heavy-duty power adapter cord for RV hook up outlet on pedestal. 100% copper wire conductor inside Length: 18 inch