Zerust Anti-Corrison Rifle Bag 10" x 50" Zipper Closure - Pack of 3 Keeps your firearm looking brand new Protects from any ferrous metals, including iron, steel and cast iron from rust and corrosion. The Zerust formula used is non-toxic and safe to use on your weapon. Your gun will be safe from corrosion for up to five years from the date of first use. Bag Size: 10 in x 50 in