100pcs NTAG216 NFC Cards - Black, 868 Bytes Memory, Compatible with All NFC-EnabProduct Description High Quality NTAG216 Chip868 Bytes of Memory, readable, encrypted, lock up storage, read and write speed faster, and the storage capacity is greater. Life life: 10 years, 100,000 rubbing (not supported on the metal surface and strong magnetic field) Specifications size 100pcs color Ntag216 black material Polyvinyl Chloride itemWeight 1. 50 pounds partNumber TK 216BK Black 100 manufacturer Timeskey NFC productDimensions 3. 8 x 2. 5