This is 1st rev. of Esbit food jar - Anti- Hit bottom cover. Bottom part of that kind of equipment gets damaged most frequently that is why I wanted to be prepared for such situation. It can be helpful expecially if your jar is in your kidos hands :)

Material used :

BambuLab - PLA TOUGH green:

https://eu.store.bambulab.com/en-pl/products/pla-tough?variant=43959192125659