gunbox-rfid-ring-1
gunbox-rfid-ring-1, "Custom RFID Ring in BLACK ONLY"Men/Women/Unisex DesignTech Specs:The RFID Ring operates on ISO15693 at 13.56Mhz. These will work seamlessly on all KONIG Models.*If you are in-between sizes, we recommend that you purchase 1 size larger than your normal ring size.