maiyum 63-37 tin lead rosin core solder wire for electrical soldering (0.8mm 50g) maiyum ▲ product name: fluxed rosin core solder wire </br>▲ parameters: tin 63% lead 37% (sn63-pb37) </br>▲ flux content: 1.8% </br>▲ melting point:soldering wire 361f/183c,0.8mm(0.0315inches), gross weight: 50g(0.11lbs/1.61ounces) </br>▲ soldering wire reel size- 55mm dia x 30mm(2.165in dia x 1.181 in) </br>▲ package: 1 pc x 0.8mm 50gram solder wire spool </br>▲ special features: perfect soldering capability, lower melting point, soldering flows more smoothly, much stronger soldering point,easier to use </br>▲ full refund guaranteed within 30days if you are not satisfied with the quality.