ID thick card is THRC12 / 13 read-only non-contact IC card. It is sensed by the card reader and read out the unique card number stored in the chip EEPROM, the card number in the card before writing, after the card can not be changed. ID thick card,Clamshell card: thickness 1.8mm, the size of the standard card size, is the most economical RF IC card, with ID number, with a portable hole, you can screen printing LOGO text information.