A desiccant/silica gel container that fits on any spool of filament. Just fill with silica gel, or any desiccant, and twist it on the middle of your filament spool. Only 2 parts, and simple assembly.

Steps:

1. 3D print both the “Lid” and “Container” files.
2. Put the container inside the center hole of your filament spool.
3. Fill container with your choice of desiccant (I used silica gel).
4. Twist the lid on to the container tightly
5. All done, enjoy!