50pcs T5577 Writable Reusable White Copy Cards For ID EM4100 Tk4100 RFID 125 Khz PVC Material Waterproof
Parameters:
1) chip:T5577
2) Operating frequency: 125kHz
3) sensing distance: 5 – 8cm
4) Size: 85.5 x 54mm
5) Thickness: 0.8mm
6) Available material: PVC