This rust preventative aerosol spray is great for the interior and exterior of rifle barrels and the outside of actions. Excellent for use when storing dies and other tools susceptible to surface corrosion. Goes on wet and dries as a protective barrier. We use a lot of this product. Really works well! CANNOT BE SHIPPED OUT OF THE U.S. This item can only ship UPS Ground within the continental United States. Mfg: Shooters Choice