Manufacturing process strictly follow the protocol ISO/IEC 50443A. It has 504 byte storage capacity and read-write lock function, the reading and writing time only need 1-2ms, data can be stored in more than 10 years, and more than 100000 times of erase and write. cards, each card is the size of a credit card. Made of PVC material, sturdy, waterproof, drop-proof, fold-, protect the internal chip, suitable for long-term use. Each NFC card with poly bag individual packing. The printable allows you to personalize your NFC card according to your needs, it can be printed by most photo ID card printers, such as compatible with , compatible with , compatible with , compatible with , compatible with , compatible with Nisca, compatible with NBS & etc. NOT use for inkjet printers. Compatible with compatible with TagMo(Android NFC-Enabled Smartphones) and compatible with Placiibo/Amiiboss/Amii NFC (iOS). Compatible with all NFC enabled smartphones and devices. Can be using for check in, mobile payment, product information query, mobile identification, mobile marketing, social networking, business card sharing, access control, membership management, book borrowing etc. Sensing distance: 0 - 10 cm specific actual distance related to sensors Quantity:100 PCS Colour:White Material:Plastic Size:85.5x54.5mm Package Contents:100 * cards