100pcs 13.56mhz rfid fuid fobs one-time key card copy keychain uid smart chip keytag changeable block 0 writable ic key tag

classification: keyfob material: abs payment: western union/tt/ output: 5000000pcs/month port: shenzhen,china model number:fuid fuid card block 0 (block of uid), no backdoor, but can be corrected only once, block 0 is locked after complaint handling and can no longer be used. category:access control card the color of the key fobs: red,yellow,blue or as customer's requirement