Tagstand NFC Sticker Pack + Free Keychain (10 NTAG203 stickers + 1 Faux Leather Keychain) Includes: 6 NFC stickers with the snazzy Tagstand logo (3 black & 3 white), 35mm square 4 on-metal NFC stickers for your home, office, car, and to set your smartphone's alarm clock right by your bed! 1 FREE NFC faux leather keychain All use the NTAG203 chip, with 144 bytes of available user memory.