Clenzoil Field and Range Foaming Aerosol is a high quality one-step Cleaner, Lubricant and Protectant Rust Inhibitor for Lock, Stock and Barrel. It effectively removes oils, copper, lead and other contaminants. It provides a thin, non-greasy coating that prevents rust and lubricates all moving parts of firearms and sporting equipment. Clenzoil will not harm polymer or other synthetic surfaces. 4 oz. aerosol can.