Inspired by this model: https://www.printables.com/model/118421-twin-18650-holder/comments

But made from scratch with my own twist. It's the 21700 battery container version for all sorts of things. In my case at the moment, to store my vape 21700 batteries.

Print settings:

Just a little warning like always, some materials may shrink while printing. i.e. on my Anycubic Kobra S1, with ASA, I had to change the scaling to 101%.