DRY Pack | 25gx10

Eco-Sorb has a glass-like, porous structure of silicon dioxide (SiO2). It adsorbs up to 30% of its own weight. And if you read it correctly, that’s adsorb and not absorb.
Eco-Sorb DRY Packs QTY4x 100g packs
Also Available EcoSorb QTY10x 25g Packs 

Silica Gel adsorbs moisture with the water molecules adhering to the surface of the Silica Gel granule. Silica Gel is covered in millions of pores that retain this moisture. Pore opening size ranges a magnitude up and down from a billionth of a metre (nanometre). The pores create a huge surface area, which will bind water through surface adsorption and capillary action.

Simply place them in amongst your draws or storage items. Then regularly weekly or monthly* dry them out.
How to dehydrate Eco-Sorb Dry packs
Remove them from the storage location and place on a baking tray.
Give each one some space so that the air can get around them.
Pre-heat your oven for 10 min to 100° C  
Place the tray with packs in a central rack and leave for about 1/2 hour
Set aside to cool on a dry tea towel or paper towel.
Replace them in your storage spaces.