· Protect yourself: Now more than ever, cyber crime and identity theft is all too real. Criminals can utilize many different technologies that can actually read your credit card/smart card information through your wallet or purse while standing several feet away from you. OUR RFID CARDS BLOCK CRIMINALS FROM STEALING YOUR INFORMATION. · How they work: Simply sandwich your smart/credit cards between 2 AuthorizID RFID blocking cards. It?s that simple. No technology will be able to read your cards. · Size: These cards have the exact length and width of a credit card with the thickness of half of a credit card. They will fit perfectly in your wallet or purse. · Easy: Don?t monkey with sleeves, RFID wallets or metal cases. Just put the RFID protection card in your wallet and you?re done.