Describe Size: 1.0mm-4.0mm Material: copper wire Color: Bronze Melting point: 280℃ Working temperature: 280-480℃ Welding current: 0 (A) feature: 1. Low residue design - This solder braid helps clean excess solder on the pins to avoid short circuits. It's particularly suitable for small, hard-to-reach areas. 2. Pure oxygen-free copper wire - no need to clean flux, easy to use. The soldering wire can clean up some residual flux and speed up the cleaning of PCB pads. 3. Braided design - The copper core adopts a fine braided design, which promotes strong capillary action and carries away excess solder. 4. Features - Anti-oxidation, anti-corrosion protection and excellent thermal conductivity. 5. Wide range of uses - can be used to correct errors on small boards on PCBs, remove relays and other components from printed circuit boards, resolder mechanical keyboard switches, and desolder old wires from devices. Desoldering of computer components such as motherboards 6. How to use 1) Place the solder wire on the solder and remove it, then push the heated soldering iron tip into the solder wire. 2) Remove the wick as soon as the solder is absorbed. 3) Cut off the used part of the wick. notes: 1. Please allow 1-3mm differences due to manual measurement. Thank you! 2. Due to differences in different monitors, the picture may not reflect the actual color of the product.