Hacking and theft is a problem technological solutions have brought. But for evey problem, there is an equal and better solution. This RFID data card protector is powered by E-Field technology and is a durable means of protecting your credit cards, debit cards, driver's license, passports etc. from hacking and theft by preventing access to the card via blockage of data exchange between the card and electronic readers as long as the RFID protector is around 23 feet of the cards. This RFID protector only works with contactless chip cards that send RFID signals and does not function with cards that are swiped. Only one protector is able to protect all cards in a single pouch and is a single and efficient way to ensure that your cards are kept perfectly safe.