Keychain for 25 mm NFC Tag

I designed a keychain to hold 25 mm round NFC chips.
Please add a pause at layer 15 or 23 in your slicer and insert the chip at that point — or simply use the provided .3MF files.
I colored one side of the chips with a permanent marker to create a slightly rougher surface for better first-layer adhesion.

I also added a Wi-Fi symbol, but you don’t need to color it — you can just ignore it if you prefer.
You’re free to add your own logo instead; that’s why I uploaded the model as a .STEP file.

There are two versions available: a small and a slightly larger keychain.
I’d be happy to hear any suggestions for improvement.

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