60 pieces blank NTAG215 NFC coin cards round 25 mm (1 inch). Mini size for convenient storage. Quantity provides the right amount for fun and needs; a good small gift for friend or family. Chip: Genuine NTAG215 chip, 540 bytes memory, password-protected authentication, high scan strength, easy to program. The 215 chip has a read/write lock function, which can be edited repeatedly or only read. Once read-only tags cannot be edited or reset. Lifespan: 10 years, 100,000 times erase and rewrite (Amiibo can only be written once, do not erase and rewrite repeatedly). High-quality NFC tag stickers: Made of PET material with a smooth surface, wear-resistant, good stability, strong adhesive strength, waterproof, durable and not easy to damage. Simple and easy to use: Self-adhesive NFC tag stickers that can be glued to books, tables, walls and most surfaces. No batteries or manual pairing required. Simply hold your phone near the tag to send data directly. Use scenarios: - Share contact information or URLs by tapping the tag with a smartphone; ideal for business cards, posters, or product packaging. - Quick setup for smart devices or apps by storing Wi-Fi credentials or app links for easy tap-to-connect. - Attach to notebooks, study guides or gifts to provide additional information, instructions, or digital content.