VCI (Vapor Corrosion Inhibitor) penetrates into the smallest crevices and drives out moisture where oils cannot reach; Provides full protection by forming a vapor enclosure around the firearm from muzzle to butt, Gives additional protection to all metal items in an enclosed area such as a gun safe or cabinet; One- or two-piece models to fit most firearms, Drawstring closure, Fits rifles and shotguns 48" to 56"; One-Piece