sanpopo 10PCS NFC Tags Waterproof Card with NFC chip NTAG215 Stickers Rewritable Black NFC Cards and Tags Fully Programmable 504 Bytes Memory Work Perfectly with All NFC-Enabled Cell Phones & Devices

Easy too use, size lines up with business card, was able to use nfc app no problem. Write/rewrite easily. They didn't take HTV vinyl from my cricut & did get a little warped. But still worked! Will buy again.

Firstly somehow these were at my doorstep the day after I ordered them! (I used free shipping, and don't have prime) I haven't tested all the tags yet but all 100 were present, and the ones I have used so far have worked perfectly with Tagmo for amiibo spoofing (or backing up/cloning game data from real amiibos). They're light, and thin but feel sturdy. I chose the 1-inch circular size for versatility. I could put it in a coin case later, sew it into a piece of fabric, maybe even put it in a jewelry pendant!!

10pcs NFC Tags Card NTAG215 NFC Tags ISO NFC Card （1.97 * 1.18inch） 504 Bytes ，Compatible with Amiibo and TagMo for Android and All Phone NFC Enabled These are small plastic NFC tags with 504 bytes of data programmability. For a WIFI connection program, i used around 90bytes for WPA2 AES. ... just to give you a reference. I use NFCTools app on android to program them instantly. Works perfectly

Arrive super fast even when I'm in Hawaii. Works great and easy to handle as amiibo. Would get them again.

They work and do as prescribed.