ZipNFC Black PVC 30mm Round tags with our ZipNFC NFC enabled logo and very sticky back. These tags have the new NXP NTAG216 chip in them that has additional features available beyond the NTAG20x chip and improved reading distance and much higher data capacity - 868 characters. These are manufactured for business and used for commercial marketing so very strong and durable as well as having a strong adhesive applied. The NTAG216 chip provides the same level of compatibility NTAG20x chip.