STW 6AWG/3C stranded wire extension cord, support max 50 AMP overload, Max Rate 12500 Watt (250V). UL & cUL Listed, Heavy-duty for Welder, 100% copper conductor inside. Molded with electroplate copper terminal in order to avoid surface oxidation effectively. Welder 3-prongs NEMA 6-50 lighted connector right-angle, 50 Amp / 250 Voltage / 12500 Watts. Universal to All Other Brands 6-50 Plug of Welding Machine 3-pole. Length: 25 FT (25 Feet).