Rust Guardit cleans all fouling, primer residue, plastics, and dirt from both the interior and exterior of your firearm. It also lubricates to withstand high heat and pressure during firing, ensuring smooth performance with every shot and protects against rust and corrosion, even in the presence of water.Features : 12 Count of 2 oz Refill Bottles Bottle to Refill Chamois Jar Highly effective on all types of fouling, primer residue, carbon, plastics and dirt Safe to use on stainless steel, chrome, nickel, and blued finishes Will not harm synthetic, plastic, or polymer frames and stocks Made in USA