You can safely put refills on the Mars Work reusable spools then take them off and swap them for other refills. I’ve been using one and swapping a couple of infrequently-used colors on and off of it.
You can safely put refills on the Mars Work reusable spools then take them off and swap them for other refills. I’ve been using one and swapping a couple of infrequently-used colors on and off of it.