All passports since 2006, and many credit and debit cards, enhanced drivers licenses, etc have a RFID (radio frequency identification) chip embedded in the card. This chip contains personal and account information necessary to complete transactions. Identity thieves can merely pass you on the street and download your personal data. Our RFID blocker sleeves are made using a patented process and special alloy to protect your data. It is FIPS 201 Approved. 5 1/2" W x 4" H
