This is a used Craftsman Professional 20559 MIG Wire Feed Welder. It operates on a standard 120V, 20 Amp outlet and is designed to weld from 26 gauge steel up to 1/4+ inch. The welder includes infinite voltage control and wire speed adjustment. It has an almost new 10 pound roll of flux core wire in it. Also includes a gas regulator and hose but I never used it. Owner's manual also included. I have another welder so I no longer need this one. The case is a little bent but doesn't bother the function.