Check the listing for details. WOODRIVER Rechargeable Desiccant Bag. Condition: New. Listed at 23.98 USD. WOODRIVER Rechargeable Desiccant Bag, 181501, Absorbs up to 35% of its weight in moisture, Rechargeable in a 600-watt microwave for 6 minutes, Filled with 400 grams of Silica Gel, Begins working right away, Reduce the rust on your woodworking tools with this WoodRiver Desiccant Bag. This Desiccant Bag is packed with 400 grams of Silica Gel Crystals capable of absorbing up to 35% of their weight in moisture. Placed in a drawer, cabinet or closet, the bag immediately begins to absorb moisture from the air, which reduces corrosion. Now you can store tools without worrying about the potential corrosion damage from ambient moisture. The WoodRiver Desiccant Bag will eventually need to be recharged. When the window on the bag turns from blue to pink, the bag is full of moisture. Simply.