[Chip Feature] Manufactured following the IEC 50443A protocol. Features 504-byte storage capacity with read-write lock functionality. Reading and writing time requires only 1-2ms. Data can be stored for over 10 years, supporting more than 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 in individual packaging. [Blank White NFC Card] Printable surface allows customization using most photo ID card printers. Compatible with various ID card printing systems. Not suitable for inkjet printers. [Compatibility] Works with TagMo (Android NFC-enabled smartphones) and Placiibo/Amiiboss/Amii NFC (iOS). Compatible with all NFC-enabled smartphones and devices. [Wide Application] Suitable for check-in systems, mobile payments, product information queries, mobile identification, marketing, social networking, business card sharing, access control, membership management, library book tracking, and more. Sensing distance: 0–10 cm, varying based on device sensor. Quantity: 100 pcs Color: White Material: Plastic Size: 85.5 x 54.5 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 allows an error of +/- 1–3 cm.