The CS-ABKIT from American Beauty is soldering iron maintenance kit for 1/4" thru 9/8" irons. Proper maintenance is the only way to ensure top performance and long life for your soldering iron. It does not take long for flux residue, contaminants and oxidation to build-up between the surface of a soldering iron's heating element and its soldering tip. This build-up has a negative effect on heat transfer as well as eventually leading to permanent tip seizure into the iron, rendering your tool unusable!