These soldering iron tip allow you do precision soldering jobs, like soldering jewelry, game console, circuit board in watch, smart phone and other small devices. These solder iron tip replacements are very easy to detach and install. These pointed solder iron tips just fit the main picture's cordless soldering irons, which are also sold in Treedix store. The soldering iron tips are easy to take and clean; Just use sponge to polish and put them on the box. If there is any question about our product, just feel free to contact us., Manufacturer: Treedix