Our legendary, deep-penetrating, fast-action cold blue now comes in a stay-put creme that gives you remarkable control for touch-up application. The simple, wipe-on, wipe-off method works great on a wide variety of steels and provides the solid-black coloring you need to match gun bluing. Surface preparation is simple and quick. A life saver around the house and the garage as well; try it on any steel you want to give a blue/black finish. SPECS: 4 fl. oz. (118 ml).