Welcome to openwaterd.vn ! 100% New and High Quality Weight:50g Wire diameter: 0.8mm. 63/37 rosin core solder. FLUX 2.0%. Good solderability, insulation resistance, No spattering and Non-corrosive. Widely used in electrical and electronics, solder parts like circuit board, electronics devices and others. INCLUDED : 1 x 0.8mm Solder Wire Reel