[ Chip Feature] 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. [Size and Material] cards, each card is the size of a credit card. Made of PVC material, sturdy, waterproof, drop-proof, fold-, perfectly protect the internal chip, suitable compatible with long-term use. Each NFC card with poly bag individual packing. [Blank White NFC Card] The printable allows you to personalize your NFC card according to your needs, it can be printed by most p o ID card printers, such as compatible with , compatible with , compatible with , compatible with , compatible with , compatible with Nisca, compatible with NBS & etc. NOT use compatible with inkjet printers. [Compatibility] Compatible with compatible with TagMo(Android NFC-Enabled Smartphones) and compatible with Placiibo/Amiiboss/Amii NFC (iOS). Suitable compatible with all NFC enabled smartphones and devices. [Wide Application] Can be using compatible with check in, mobile payment, product incompatible withmation 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 Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.