i have one “row” for each gauge (20, 18, 16, etc) and then i write the ring size in marker on the lid.
i LOVE these in that they lock- making them super hard to split out contents!
if you search for “craftmates lockables” you’ll see that they come in a variety of sizes. i have the setup in the link above and use it for my charms.
https://www.amazon.com/s/ref=bl_dp_s_web_0?ie=UTF8&search-alias=aps&field-keywords=CRAFT+MATES