50pcs NFC Tag Cards Key Tags NXP NTAG215 Chip,504 Bytes Memory Programmable Rewritable NFC Business Cards, Compatible with TagMo Android for All NFC-Enabled Smartphones and Devices

Simple to use, no problems , FYI they are a one-time use item and cannot be written over. I purposely went with this bigger size as I knew it would be harder for the kid to lose them compared to the little NFC stickers. We used these NFC cards primarily for making amiibos for the Nintendo switch. The cards fit absolutely perfect in in card protector sheets that you normally use for trading cards which is a great way to store them.

Perfect t for spoofing amiibos, making digital business cards, or rickrolling people. Simply write data to the card and hold it to a reader. Bonus points for a convenient size and shape.

Got what I expected, I had no duds or missing cards. I do recommend! And I had messages from the seller to make sure I got everything that I ordered. Hope this helps!!