Hello Kitty Card Holders blocks RFID signals

If you are looking for a way to prevent RFID signals, the Hello Kitty card covers is just the thing. Offering a perfect fit for credit card-sized objects, these RFID-blocking Hello Kitty Card Holders are bound to frustrate those who want to skim off the radio-based signals in credit cards and subway passes. You can’t purchase them individually as they come in a set of four which will set you back by approximately $55. If only there were bigger versions that could house the new RFID passports that are issued in US.