25x 20 gram silica gel packets (500g total) with a mix of white and orange to green indicating beads.
Suitable for keeping filament dry, put a couple of these with a roll of filament in a sealed bag or container.
When the Indicating beads turn green the Silica Gel is fully saturated and it can be dried in an oven or dehydrator for re-use.
Note - Drying in a microwave is not recommended, The beads will get very hot if they are heated too fast.
