This filament accessory is designed to comfortably contain 3 (or more) desiccant packs in the center of your filament spool.  With this accessory the desiccant packs will no longer fall out of the spool in storage or in use.  Included is a filament clip to make storage of  your filament a cinch.  There is a stowage pocket for the filament clip in the side of the accessory; so, you will never misplace your filament clip again.  I’ve tested this accessory with several brands of filament (eSun, Matterhackers, Generic Brands, Raise3D, Bambulab, et) so, this accessory should be useful for most any modern filament spool. 

I uploaded .STL, STEP and 3MF file versions. No additional supports, brims or skirts needed.  I printed parts  you see in ABS but, any material would work.