Dry-Bag@ is a re-usable desiccant, designed to solve rust and moisture problems in caravans, boats, summer houses, cupboards and wardrobes. Removing the plastic bag will activate the desiccant and prevent moisture damage. The desiccant is non flammable and does not drip. This bag will take up about 75% of its dry weight. After 2-3 months the colour of the compound will have turned dark brown and it will then be time to regenerate. Instructions for regeneration enclosed.