Multicore - For Electronic & Model Making etc.;5 core Savbit alloy solder reduces copper erosion and increases life of soldering iron bits, by up to 10 times. Suitable for model making, hobbies, telecommunications and electronics work.;Use with soldering irons increasing life of ...Multicore - For Electronic & Model Making etc.;5 core Savbit alloy solder reduces copper erosion and increases life of soldering iron bits, by up to 10 times. Suitable for model making, hobbies, telecommunications and electronics work.;Use with soldering irons increasing life of soldering tips;Handy tube dispenser pull out what you need no tangling then using reel coil solders;Solder copper brass pewter bronze zinc lead, tin and gilding metal;Extra fast non-corrosive;Increases life of soldering tips;Solder wire Ø1.22mm (18swg);Weight including dispenser 30g