Description It cleans and prevents metal oxidation which allows solder to create strong, long lasting mechanical and electrical bonds. It also acts as a wetting agent, increasing the flow of solder and the efficiency of the soldering process.Cleans and prevents oxidationIncreases flow of molten solder. Features - Color: Silver and golden.- Material: Copper wire.- Size: 6.60 x 6.60 x 4.00cm/ 2.59 x 2.59 x 1.57 inch.- Better than conventional sponges. It doesn't need water so that will not reduce the tip's temperature.- brass material. Your tip will be cleaned cleaner and faster.- When you clean your soldering iron tip, there won't have tin residual out the container, which will keep your workbench cleaning.- Smokeless, tasteless, and saves the energy, won't damage your soldering tips.- For use with dry irons, for home and workshop applications.