Spare Battery Carrier For 18350 Cells?

EDC Gear for Flashlight Carriers
23

I have ordered these; they hold two cells but they are usually in stock albeit with slow shipping. I use them for storage:

https://www.ebay.com/itm/HOT-Portable-Hard-Plastic-Battery-Case-Holder-Storage-Box-For-2x18350-Batteries-/152238739694?hash=item237222d0ee

For the hell of it, these are ones I have ordered for 26650 cells: