ISO CR-80 (85.6 x 54 x 0.76 mm) 13.56 MHz proximity smart card (NFC Forum Tag 4 Type) without contact chip. NTAG 424 DNA chip. Random encryption UID EAL4. 416-byte EEPROM memory. Made of PVC. White, without screen printing. Minimum order: 2,000 units (in packages of 2,000 units).