General Description Our solder wire kit contains 4 rolls of 50g rosin cored wire (0.6/0.8/0.8/1mm), perfect for meeting your various soldering needs and designed for extended use. The wire is made of high-quality electrolytic tin with built-in flux, which facilitates the soldering process while reducing fumes and rosin splashes. Technical Specifications 4 rolls of solder wire, 50g each Diameters: 0.6mm, 0.8mm, 0.8mm, and 1mm Composition: Electrolytic tin with built-in flux Rosin content: 2% Compatibility and Accessories Ideal for soldering electronic devices such as air conditioners, TVs, and VCRs Suitable for repairs on printed circuit boards and other electronic equipment Installation Use a suitable soldering iron to heat the wire and apply it to the connections to be soldered. Ensure the surfaces to be soldered are clean and free of oxidation for optimal results. Use The solder wire is ideal for: Soldering electrical connections Repairing electronic devices Performing DIY and craft