With employee turnover, there can be a lot of waste when it comes to HID cards. Well now there is a way to reuse your HID cards! With these sticky back cards from Datacard you just print a new card and adhere it to the old ID card. The Mylar pack peels off leaving you with a 10mil PVC card that fits perfectly on existing cards. The thin 10 mil card does not inhibit the HID Smart/Proximity card from working.