[Chip Function] Manufacturing process strictly follows the /IEC 50443A protocol. It has a 504-byte storage capacity and read-write lock function. Read and write time is only 1-2ms. Data can be stored for more than 10 years and withstands over 100,000 erasures and writes. [Size and Material] Credit card-sized. Made of high-quality PVC material, it's durable, waterproof, drop-proof, and bend-resistant, perfectly protecting the internal chip for long-term use. Each NFC card comes individually packaged. [Blank White NFC Card] The printable surface allows customization to your needs. Compatible with most photo ID card printers (e.g., [Printer Brand Names Removed]). DO NOT use with inkjet printers. [Compatibility] Compatible with TagMo (Android NFC-enabled smartphones) and Placiibo/Amiiboss/Amii NFC (iOS). Suitable for all NFC-enabled smartphones and devices. [Wide Application] Can be used for check-in, mobile payment, product information inquiry, mobile identification, mobile marketing, social networking, business card sharing, access control, membership management, library borrowing, etc. Sensing distance: 0-10cm (actual distance depends on sensors). Quantity: 100 PCS. Color: White. Material: Plastic. Size: 85.5x54.5mm. Package Contents: 100 * cards