2) Material:Top quality PVC
3) Size: ISO Standard size:85.5x54x1.8mm
4) Chip style: TK4100 compatible with EM4100
5) Craft: White
6) Frequency: 125KHZ
7) Read range: 10~12cm
8) Operation Temperature:-40°C to 85°C
9) Square coil,read distance is longer than normal ID cards.
10) not H ID card,and it's not rewritable card,just read only,the card has unique ID number.
100pcs TK4100 Thick Clamshell 125khz rfid card