1WATERPROOF PVC: NFC tags are made of PVC material, which has strong water resistance and can be placed outdoors or near water without losing function 2CONVENIENT AND REWRITABLE: The memory capacity of the NFC 215 card is 504 bytes, which bring great convenience to your life, and these NFC stickers are readable and writable, so that you can change the data at will 3SCOPE OF APPLICATION: Can be used as mobile NFC sensor card, game identification card, personnel information card, patrol card, fast transmission and information reading, prevent fouling, possess large memory information storage 4EASY TO USE: NFC cards are simple to operate, fast to read, just put the phone on the NFC label, and the data written in the card will be directly sent to the phone 5PASTE AT WILL: NFC tags have adhesive on one side, and can be adhered to the items you want to use at will, provide great convenience for your life 50 x NFC Tags 1 x Storage Box