[Chip Functionality] Manufactured following strict protocol /IEC 50443A. Features 504 storage capacity and write-protection. Read/write times are only 1-2ms, with data storage for over 10 years and more than 100,000 erase/write cycles. [Size and Material] Credit card sized, each card is made from high-quality PVC material. They are robust, waterproof, drop-proof, and bend-resistant, perfectly protecting the internal chip for long-term use. Each NFC card comes with an individual protective sleeve. [Blank White NFC Card] The printable surface allows for custom NFC card designs. Compatible with most photo ID card printers, including for Zebra, for Fargo, for Evolis, for Canon, for HP, for Nisca, for NBS, etc. DO NOT use with inkjet printers. [Compatibility] Works with TagMo (Android NFC-enabled smartphones) and for Placiibo/Amiiboss/Amii NFC (iOS). Suitable for all NFC-enabled smartphones and devices. [Wide Application] Can be used for check-ins, mobile payments, product information inquiries, mobile identification, mobile marketing, social networking, business card sharing, access control, membership management, book lending, and more. Sensing Distance: 0 - 10 cm (actual distance depends on sensors). Quantity: 100 pcs Color: White Material: Plastic Size: 85.5x54.5mm Package Contents: 100 * Cards Only the above package content is included; other products are not. Note: Light reflections and different displays may cause the color of the item in the picture to differ slightly from the real thing. The allowed measurement error is +/- 1-3 cm.