Desiccant Bead Holder

Just a 50mm O.D. cylinder with 2mm wide slots on the sides and a whack of holes on the end. The intent is to hold desiccant beads that purport to be 3-5mm in diameter but, of course, tend to fragment into smaller bits than that. The longer (70mm) model is intended to screw directly into my custom filament spool container, while the shorter version can be capped and thrown inside the centre of any old spool.