200pcs 125Khz RFID Proximity Cards ID Card Door Entry Access 0.8mm Product Name : RFID Card,125Khz ;Material : Plastic, PVC Standard : EM4200,EM4100;Reader Distance : 5-12mm Compatible with all ID door access devices or ID reader Contactless transmission of data,Only can be read,can't be rewritten,or used to copy other RFID cards 125Khz,RFID type only,only compatible with the RFID 125Khz Card Reader