The Hoppe's AirVault Long Term Firearm Storage Bag offers you a simple and easy solution to protect your firearm for up to 5 years. Simply insert a clean firearm into the storage bag, sip and store in a cool dry place away from direct sunlight. With Hoppe's AirVault VCI technology it incorporates a proprietary blend of corrosion inhibitors woven throughout the interior of the bag thus creating a molecular barrier against the corrosive effects of moisture, salt and other contaminants that can devastate a firearm.