●EASY CARRYING - With its small size and light weight, you can easily put it in your pocket where you want to do your work. ●Do not affect work: when cleaning the soldering iron, the temperature only decreases by 2 to 3 °C. After cleaning, it can be soldered immediately, it does not affect the working effect. ●Main application: the paste is meant to clean the black oxide layer of the soldering iron tip, remove the oxide layer and re-tin. the soldering tip to make it look new and extend its service life. ●4 pieces: there are 4 pieces of clean paste in the pack, enough quantity to meet your daily needs and can be used for a long time. ●Easy to use: while working, insert the tip of the soldering iron directly into the paste for two or three seconds, then clean with a sponge and then use again. The repair effect is excellent