Birchwood's Barricade Rust Protection protects your firearms from rust. It rapidly drives out moisture from metal pores and deposits a transparent coating which seals the surface with a protective film. It is also an excellent penetrant for loosening rusty or frozen parts, as well as a good lubricant and an effective bore cleaner. Contains FPR to wipe off corrosive fingerprints on all your firearms. Size 4.5 FL. OZ Type Rust Inhibitor Series Rust Protection Material Multiple Protects Against Rust Quantity 1 Suitable For Firearm Metal Surfaces