RFID 125KHz Writable Rewrite T5577 Proximity Access White 1.9mm Thick Card White 400 pieces

Writable & Rewritable：They are empty RFID cards without data. They can repeatable reading and writing 100000 times. You need to write data to them for use. Compatible with RFID duplicators of 125kHz frequency, Features: Waterproof, dustproof, durable, Frequency /Chip: Frequency 125kHz, chip t5577, sensing distance 1-4 inches, Size /Package: Single size 1.4 * 1.1 * 0.2inch, Wiping life: more than 100,000 times