Used 10AWG/3C copper inner wire with outdoor PVC jacket, support max 30 Amp loading. Pins and terminals are made with nickel-plated brass to prevent oxidation rust. Dryer NEMA 10-30 125V/250V 30A molded 3-prong male plug. Welder NEMA 6-50 250V 50A molded female receptacle. Heavy-duty 100% copper wire conductor inside,. Length : 10 Feet If you want to use your welding 6-50 plug connect in to 10-30 wall outlet to get power, this adapter can help you to do it.