Question : How do RFID blocking sleeves work?
Answer : RFID blocking sleeves use materials that interfere with the electromagnetic waves emitted by RFID scanners, preventing them from reading the data stored in your cards, license, or passport.
Question : Do I need to remove my cards from the sleeve to use them?
Answer : No, the sleeves are designed to allow you to use your cards without having to remove them. Simply wave your protected card in front of the scanner as usual.
Question : Will the sleeves fit all types of cards, licenses, and passports?
Answer : Yes, the sleeves are designed to accommodate standard-sized cards, licenses, and passports. They are flexible and can easily be slipped on and off.
Question : What type of material is this made of? If you are not sure, how would you describe it?
Answer : Like a plastic, does not tear.
Question : If I buy this item, will I get instructions on how to use it?
Answer : There were no instructions when I received them. They are difficult to place in card slots in wallets and are difficult to open to insert card.
Question : Does this fit in a wallet?
Answer : Yes, it is a little larger than the cards but they fit fine in mine.
Question : What are the dimensions in millimeters?
Answer : Outside dimensions 64mmX92mm. Holds typical credit cards.
Question : Do you have to remove the credit card from the sleeve when scanning to make a purchase?
Answer : Yes, you have to remove the credit card.
Question : Would these work to protect key fobs as well?
Answer : They are pretty rigid material and really only meant for cards. Your key fob may fit into it, but would probably not stay.
Question : Has anyone had a problem with their credit/debit cards getting demagnetized when using the sleeves?
Answer : My wife and I both used the sleeves while on a trip through southern Europe and did not have any problem.