features:<br />less residue， bright spot， reliable<br />welding performance is good<br />during welding spatter less， smoke less， smell feel relaxed<br />corrosive small<br />easy to carry and electronic enthusiasts essential materials<br /><br />specification:<br />63/37 rosin core solder<br />flux 2.0%<br />wire diameter: 1mm<br />weight of one reel: 100g/3.5oz<br />melting point: 361?f/183?c<br />total wire lenght of one reel: 1400cm/45ft<br /><br />package included:<br />100% <br />1 x 63/37 solder wire