This silica gel container slides easily in and out of Bambulab Bambu Reusable Spools without needing to unthread the lid, with an excessive amount of moisture entry points to maximize absorption. There is a printable funnel that adapts to fill the container. It’s designed to keep your AMS and filament dry with the ability to easily swap it into your next roll! It also provides some extra weight on spools preventing them from bouncing when filament is low.

I have had success using these with Eryone and eSun cardboard spools. Hopefully you do too!
 

I look forward to seeing your prints!

Note: I recommend using a high-temp filament like PETG or ABS/ASA, so the holders can be placed in a filament dryer to dry the silica gel without the model warping. Some shrinkage is expected when using ABS/ASA, which may affect the current tolerances.