High moisture absorption These rechargeable dryer packages remove moisture from the air to help keep items dry, even in very humid conditions. They reduce dampness and prevent cold moisture from forming. Color indicator and quick recharge The indicator on the front changes from blue to pink as moisture is absorbed. After use, follow the included instructions to recharge back to blue in minutes. Safe storage Dryer packages create a protective environment to prevent rust, corrosion, oxidation, mist and other moisture damage during storage. Large capacity Simply place your items in boxes and containers of up to 200 gallons with dryer packages. They help protect belongings from moisture and related damage. Wide use Protect documents and files, memories and photos, art and craft materials, clothes and baggage, drawers, sensitive electronic devices, and many other valuable goods.