60/40 rosin core solder. .8mm/.033" diameter solder wire
Melting point 185-degree C.
Weight:100g. Length: 100 feet
This is a quality solder that melts at a low temperature and flows well. The quality of the solder does make a big difference in the results you have with soldering. I set my iron at 400 degrees F. for most of my soldering.