Card-thch 5pcs RFID 125KHz EM4305 Card Writable Tags Keychain+Free 1 TK4100 ID card Writable/Rewrite - Can be used in 125KHz RFID card Copier/ Duplicator Only can copy ID number Compatible with all Door Entry system Brand new key inductive card for entrance guard system. It applies to access control, hotel locks, staff attendance and school campus access and payment control, identification and security systems, parking lot entry and payment, social security management, transportation payment, municipal and ancillary service payment.