30pcs NFC NTAG216 Stickers/Tag/Adhesive Label RFID Tags with NTAG216 Chip 924 Bytes Fast Read/Write/Lock Compatible with All NFC-Enabled Smartphones and Devices (25Pieces + 5bonus)
Brand: YIQing
Features:

924 bytes or rewrite-able and optionally password protected or permanently lockable storage (600%+ the amount of storage as an NFC NTAG216)
Once Locked the tag cannot be unlocked
Product Introductions
NTAG216 provides full compliance to the NFC Forum type 2
White PVC sticker is water resistant
888 Bytes user programmable read/write memory
Product Characteristics
25mm diameter with 80g coated paper
program a set of commands
Operation Temperature: -20°C~+80°C (-4°F~+176°F)

Storage Temperature: -20°C~+80°C (-4°F~+176°F)
Will NOT work on metal surface (there are special tags noted as “on-metal” for these applications)
Automate repetitive tasks on an NFC enabled smartphone
Applications:

Store a web address that will take any NFC smartphone right to your website (or Twitter, Facebook, Instagram, Pintrest, etc.)
Store your Credit Card Issuing Bank’s Contact Number and stick on the back of your Credit Card to easily call them up if you have any issues.
Automate repetitive tasks on an NFC enabled smartphone. (example: Turn Bluetooth off, turn Ringer off, unlock screen, etc.)
Materials: The material is PVC and it is waterproof
Standard: ISO/IEC 14443A-13.56MHz
Ntag216 chip and compatible with all NFC-capable phones(but not work on mental surface)
Package Including 25pieces +5bonus white NFC stickers Ntag216 with regular adhesive on back
Aftersales-service: professional after-sale technicians answer the problems in the development process for you in time