This listing is for a pack of Forney 45889 E4043 DC aluminum stick welding rods. These are 1/8" (3.2mm) diameter specialty electrodes, ideal for welding various grades of aluminum, including cast, wrought, and extruded aluminum alloys with copper, silicon, and magnesium. Each pack contains 17 rods, weighing 0.5 Lbs (0.23 Kg). Recommended amperage is 70-120 A (DCEP). Perfect for general aluminum fabrication and repair.