Shomer-Tec Static Intercept Bag Preservation/Storage Bag This state-of-the-art bag offers corrosion protection for ferrous and non-ferrous metals and galvanic coupling Items can be stored in this bag for up to 20 years without having to worry about rusting or corrosion Whatever you store inside will be ready for use whenever you need it; No need for heavy grease, cosmoline, or special dehumidifiers in your gun safe Bag contains self-sacrificing elements that will protect the contents for about 20 years or until the bags chocolate brown color turns to black Thickness: 3 mil. Size: 46 x 14 ; Made in U.S.A.