This is your basic spool of leaded solder with a 63/37 water soluble resin core. 0.8mm gauge and 50 grams. This is a good spool for more advanced users that should last 3-6 months depending on how often you solder.
When placed on a solder connection and heated; this rosin coated copper braid will draw up the melted solder. 4ft on a plastic spool. Ideal for PC board repair, field service, etc.
Lightweight, Bakelite construction. This is recommended for any SuperDroid Electronics Kit that requires soldering.