The solder wire has been treated by a special technology with oxide removal and antioxidant bearing, features with anti-oxidation stability and anti-corrosion ability. When using, there will be no stench, no toxic or unhealthy smell and less smoke. With the solder wire reel, soldering can be accomplished faster, saving time and labor. _ Feature: 1. Made of high quality rosin and tin, no stench, no toxic or unhealthy smell and less smoke 2. With the small diameter makes it easy to control how much you need for soldering 3. Convenient to use, works great, no burning and product is consistent 4. Good solderability, insulation resistance, no spattering and non-corrosive 5. Widely used in electrical and electronics, solder parts like circuit board, electronics devices and others Specifications: Wire Diameter: 0.8mm,1mm 1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.