[Chip Feature] Manufactured following the ISO/IEC 15693 standard. Features 504-byte storage capacity with read-write lock functionality. Reading and writing time requires only 1–2 ms. Data retention lasts up to 10 years, supporting over 100,000 erase and write cycles. [Size and Material] Each card is credit card sized. Made of high-quality PVC material, durable, waterproof, drop-resistant, and fold-resistant, effectively protecting the internal chip for long-term use. Each NFC card comes individually packed in a poly bag. [Blank White NFC Card] Printable surface allows customization. Compatible with most photo ID card printers. Not suitable for inkjet printers. [Compatibility] Works with TagMo (Android NFC-enabled smartphones) and Placiibo/Amii/Amii NFC (iOS). Compatible with all NFC-enabled smartphones and devices. [Wide Application] Suitable for check-in systems, mobile payments, product information retrieval, mobile identification, marketing campaigns, social networking, business card sharing, access control, membership management, library book tracking, and more. Operating distance: 0–10 cm (actual distance may vary depending on device). Quantity: 100 pcs Color: White Material: Plastic Size: 85.5 x 54 mm Package Contents: 100 x NFC Cards Note: Light reflection and display differences may cause slight color variations between the image and the actual item. Measurement tolerance: ±1–3 cm.