The downloadable version is for CR2032 battery. Use the customizer for different sized batteries.
Most important options in customizer:
- width and height of the battery
- you can add text to the visible front of the holder. This text is engraved in the top
You print both parts (apart or together), put wire through holes in the back, wire through holes in the front, battery inside, and click it together carefully. via the eyes around the back you can sew the holder to textile!