This is the same size as an NFC 213 sticker. I am able to place nfc tags in 3D models by using this file to subtract the area within the file.

These are the stickers that I purchased:https://www.aliexpress.com/item/10pcs-Lot-NFC-Tags-Sticker-13-56MHz-ISO14443A-Ntag-213-NFC-Stickers-Universal-Lable-Ntag213-RFID/32811240772.html?spm=a2g0s.9042311.0.0.27424c4dZafB69