ITEM NAME:100g 0.8mm 60/40 Tin lead Solder Wire Rosin Core Soldering 2% Flux Reel TubLJ.1 x Flux Reel Tube. Widely used in electrical and electronics, solder parts like circuit board, electronics devices and others. 0.8mm/ 0.03". Good solderability, insulation resistance, No spattering and Non-corrosive.