Keep moisture levels at a manageable level with this HornadyA(R) Canister Dehumidifier. Easy-to-use unit requires no batteries and keeps your firearms free from rust and damage in any enclosed area. Plus, it's incredibly easy to recharge. Just place it in your oven at 300AdegF until the drying granules turn blue. 1,500 grams of rechargeable desiccant Prevents moisture damage in enclosed areas Desiccant crystals change color when canister needs recharging Rechargeable design-just place it in any oven at 300AdegF Unlimited recharges and requires no batteries Order today!