Fire-Arm Guard moisture absorbent pouch. Covers up to 60 cubic feet. Includes 2 year warranty. 
 
The water absorbing bars are sealed in a burlap pouch. One pouch will cover up to 60 cubic feet, pulling moisture and unpleasant smells from the air for months on end. The burlap is clean and free of oil and will not stain your guns or equipment. Using the handy strap you can hang it in a locker, safe, or cabinet… or simply lay it inside any safe or container you use to store your guns or ammo.