Diameter 30mm Round Shape  N-tag215 NFC Tag Sticker 13.56Mhz Passive Paper Label is 13.56MHz nfc chip and antenna with paper or softer pvc , pet material .It is worked with N-tag215 chip and as standard NFC tag or sticker ICs to be used in mass market applications such as retail , gaming and consumer electronics .Manufacturer programmed 7-byte UID for each device and follow NFC Forum tag 2 type compliance , 504 bytees freely available user read and write area for bigger applications data storage . Customized printing , die-cut size and shapoe ,encoding and serial number printing are available .