Never used product, packaging damaged during transport. Unopened product, repackaged in our warehouses, in perfect working order, warranty available. 4 Rolls of Soldering Wire: Our soldering wire kit contains 4 rolls of 50g rosin cored wire 0.6/0.8/0.8/1mm, which can meet your various soldering needs and can be used for a long time. Excellent Material: The solder wire is made of high-quality electrolytic tin with built-in flux, which makes soldering easier. Less smoke and less rosin splashing when soldering. Fine Workmanship: The rosin content of the rosin core solder wire is 2%, evenly distributed inside the wire, with good continuity, not easy to break the core, and neatly wound wire. Soldering Performance: This solder wire has good activity, high insulation resistance, good wetting and expansion ability, which makes the solder joint smooth and protects the brightness of the solder joint. Wide Application: Our solder wire can be used for soldering, repairing computers and