Good solder-ability, insulation resistance, No spattering and Non-corrosive.Widely used in electrical and electronics, solder parts like circuit board, electronics devices and others.Specifications:Type: 63/37 rosin core solderFLUX: 2.0%.Wire diameter: 0.3 inch / 0.8mm.Size: 2.2 x 1 inch / 5.5cm x 2..