Mudder Lead Free Solder Wire Sn99 Ag0.3 Cu0.7 with Rosin Core for Electrical Soldering 0.22lbs (0.6 mm) Lead-free solder wire: lead-free solder wire with rosin core; It weighs 100 g/ 0.22 lb; The size of solder wire roll is 5.4 x 5.4 x 2.8 cm/ 2.1 x 2.1 x 1.1 inches Relative parameters: the diameter of the electrical soldering wire is 0.6 mm/ 0.023 inch; Sn/ Ag/ Cu: 99%/ 0.3%/ 0.7%; Flux: 2% Easy to use: the melting point of soldering iron wire is 215 - 220 degrees Celsius/ 419 - 428 degrees Fahrenheit; Flows well and heats evenly, easy to use Good quality soldering wire: good solder ability both in electrical conductivity and thermal conductivity; With the solder wire reel, soldering can be accomplished quickly Wide application: the rosin core solder wire is designed for electrical repairs, such as radios, TVs, VCRs, stereos, wires, motors, circuit board and other electronics devices Repair circuit, household electrical appliancesand toys Main unit when fixing and repairinghousehold electricals A must have tool foryourDIYelectronic projects