Snapsafe Rechargeable Dehumidifier Medium, 75900 -Portable Moisture Absorbers SnapSafe Silica Gel Dehumidifier - protect your firearms, gun accessories, ammo and more from excess moisture, rust, and corrosion by keeping this reusable dehumidifier unit Medium, 75900 handy to indicate humidity control Keep Your Gun Safe Moisture and Rust-Free - portable dehumidifier with highly absorbent silica gel to attract excess humidity from its surroundings. This SnapSafe dehumidifier is crucial in maintaining the overall condition and shape of your guns and other valuables Compact, Easy to Use - ready to use gun safe dehumidifiers with no batteries or electrical equipment required during active use. Contains no harmful chemicals and is child, pet, and home safe. Effective in spaces up to 333 cubic feet Humidity Indicator - ideal moisture absorbers for safes, pantries, and other enclosed areas. The desiccant crystals change from blue to pink when it's time to recharge each desiccant dehumidifier unit. Simply plug into 110V outlet and it will dry out over the course of a day, ready to go for several weeks Gun Safe Accessories for Your Lifestyle - further protect and preserve your firearms as they are being stored with this efficient SnapSafe storage dehumidifier. Optimal for all of your small spaces including gun safes, gun locker, rifle safe, hard case, gun bag, closets, cabinets, cars, RVs, boats, pantries, and more