control access HID is a world famous company manufacturing control access equipment and cards. We have many years experience working with HID, and is able to convert HID technology to our own manufacuring of the same quality ID Card, but at much lower cost. Customers can always pay less to enjoy the same technology. Frequency : 125 KHz Chip : H 1386 Dimensions ( L x W x H): 8.57 x 5.4 x 0.079 cm (thin card) / 8.57 x 5.4 x 0.18 cm ( thick card) Packing Material : PVC Other Feature: RF programmable, card ID number can be customized, outstanding anti-interference