Silica Gel & Desiccants
Used in enclosed storage spaces to protect against humidity damage.  Ideal humidity control for coins, gun safes, cameras, tools, etc.  Silica Gel and Desiccants prevent moisture related problems before they begin and create a protective shield of dry air within any enclosed storage area.  Silica Gel and Clay Desiccants are easy to reactivate and provide a lifetime of protection.
Silica Gel is a man made desiccant, Clay Desiccant is a natural product mined from the earth.