The size of the NFC sticker is 25 mm in diameter, small and . Nfc stickers are made of PET material, and sticky. You can hover your phone over the 215 coin tags for easy use, and the data be automatically entered into your phone. Please note that it is not suitable for use in strong magnetic environments and metal surfaces, which its functionality. The NFC chip has 504 bytes of stock, providing you with enough storage space and has a read/write lock function to quickly write the information you want. Compatible with for TagMo and all NFC-enabled Android systems. (Note: When the device writes to the card, the lock option must be checked, otherwise the console not recognize it). NFC stickers can be used for outdoor mobile phone holder labels, electronic label holders, smart advertising, product certification, etc. It can also be attached to different locations in your home or office to perform your tasks. It automates tasks, shares information, and increases convenience. 60 NFC stickers can be given as Christmas gifts to colleagues, friends or family members to experience smart life. Great for gamers and collectors. Compatible FOR TagMo AND NFC Enabled Mobile Devices Material: Paper colour: white Package Contents: 60 Sheet nfc stickers Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.