Why Is it Called A NFC Coin Card? Because the shape is similar with a coin.The RFID NFC Coin Card is a new type of RFID Contactless Card, generally made of 100% full new plastic PVC material, PET / PETG available as client's need. Ntag213 NFC coin card is the coin card equipped with the Ntag213 chip, having all full the features of Ntag213 chip, such as 32-bit password authentication, ASCII UID mirror, integrated originality signature, and providing a simple but powerful product authentication method, etc. DAFTags Ntag213 NFC Coin Card has high quality with best factory price. Please feel free to contact us to get more information and get Free Samples!