OPTEXX RFID Blocking Passport Cover Baltica Alex Black Nappa T&Uuml;V tested and certified &#10102; Best RFID Blocking since 2012 &#10004; &#10103; OPTEXX RFID Passport Wallet / Cover TV certified &#10004; &#10104; Fits passports of the EU, UK, US, CA, Switzerland, Australia and similar sizes &#10004; &#10105; RFID Protection Made in Germany &#10004; The protective material, which is invisibly attached double sided, was specially developed for shielding radio waves. When using this cover, the communication between reader and chip is blocked and no data can be read involuntarily.