Easy to Use: The process is simple, just swipe over the 215-coin tag and the data is entered into your phone, no energy, battery, or manual pairing required, easy to use. Small Size and Material: The circular NFC sticker has a diameter of 25mm, is thin and portable, fits on a white PVC card, and has a surface and waterproof PVC material to effectively protect the NFC inside. Wide Range of Applications: NFC PVC stickers can be used in outdoor intelligent advertising, mobile phone matching labels, WiFi matching, electronic label shelves, and business cards, etc. 30 pieces for NFC round cards, writable NFC sticker labels compatible with for tagMo and , 504 bytes of memory are fully programmable for devices that support NFC Readable Card: Due to readable and writable properties, NFC sticker labels allow users to change and read data at any time, and the internal can quickly read data. Please note that NFC-enabled devices are required. Suitable Occasion: You can use the blank card to set alarms, turn WiFi on and off, make calls, launch apps, join networks, display messages, share contacts, display addresses or locations, update social media, open web pages, etc. Color: White Material: PVC Package Contents: 30 * 25mm Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture to be slightly different from the real one. The allowed measurement error is +/- 1-3 cm.