What fits the holes in the Tōk?

Most, if not all, factory-made  half-gram pre-rolls. As for those you twist yourself, it depends on how big you roll ‘em! Most folks can actually fit 2 or 3 joints in each hole.  The exact dimensions are  ½” diameter x 3.3” long  and 13mm diameter x 84mm long, but to help you visualize: if you drop in a Sharpie, the Tōk encases all but the marker lid.  Some people even use one hole for breath mints, but that’s up to you. Do what you want, we’re into it.