This print will not work in a rigid material like PLA or PETG. Flex is required to stretch and hold the tag tightly.
Similar rigid material designs are available to download from my account
Credit to Xuis for the Air Tag model essential for creating these tags: https://www.prusaprinters.org/prints/66550-apple-airtag-model-from-official-apple-measurement
The author marked this model as their own original creation.