The Hornady Security Rechargeable Dehumidifier is designed to prevent rust or mildew in gun safes or other enclosed areas. Filled with desiccant crystals designed to absorb moisture from your safe, closet, tool chest, or other enclosed area. As the desiccant crystals fill with moisture they change from blue to pink. Recharging the dehumidifier is easy by simply plugging it into a common 110V wall outlet.

Features:prevent rust or mildew in gun safes or other enclosed areas;desiccant crystals designed to absorb moisture from your safe, closet, tool chest, or other enclosed area;Recharging the dehumidifier is easy by simply plugging it into a common 110V wall outlet