These tokens can hold images of Heroes 3 The Board Game units. Images should be printed to be 39mm wide or maybe a little less, depending on your printers calibration.
Link to images:
https://boardgamegeek.com/thread/3471556/printable-unit-summary-tokens
If you want to generate similar images, check this:
https://github.com/varjujan/HoMM3_BG_Unit_Token_Generator
Print them vertically.
The author marked this model as their own original creation.