Wet and nasty weather can take its toll on any firearm. Otis Firearm Protectant is a bio-based formula that uses water displacement to protect your gun from oxidation, rust and corrosion in inclement weather conditions. Great also as a short term storage solution - with protection lasting 3-6 months if used indoors. Protects firearms from oxidation, rust and corrosion Ideal for use prior to inclement weather Protects firearms indoors 3-6 months Available in 2 oz. bottle and 4 oz. aerosol