Barricade Rust Protection for firearms rapidly drives out moisture from firearm metal pores and deposits a transparent protective coating which seals the surface. Its the best way to protect your firearms from rust. Withstands 500 hours in ASTM humidity test and 96 hours in ASTM salt spray test. Barricade Rust Protection for firearms is also an excellent penetrate for loosening rusty or frozen parts, as well as a good lubricant and an effective bore cleaner. Take your pick of how youd like to protect your firearms with a variety of can options or Take-Along Gun Cloths! Its never been easier. 4.5 fl oz Spout Can.Please note: This item cannot be shipped to an address within the State of California.