Desiccant Tube

I found that large cookie tins are perfect for storing partially used filament spools however there was not room to hold a desiccant container, so I created one that would fit inside the center of the spool (see photo #3). I use indicating desiccant (found on Amazon in gallons) that turns from orange to green when it needs to be replaced (see photo #2). The desiccant tube is a tube within a tube to promote air circulating. Both tubes have holes that are just a little smaller than the desiccan