This is a key fob depicting an army food container (18 l) used by the Swedish armed forces, and it seems like the Brits and Norwegians to. It 's not 100% accurate but more of a visual interpretation. Measurements used are real and printed to 11% of original size. In the model there's a group called "cosmetics" and that is not exported to the stl. That's just there for reference and making a pretty model in FreeCad.