10 Credit Card Protector Sleeve (8 Credit card & 2 Passport) Multilayer RFID Blocking Sleeve Technology Prevents ID Theft UNIQUE and STYLISH Designs
I'm not sure if these work but no one has stole my card information as of yet!! But, I can say that they are the cutest holders ever! I love how thick they are, they aren't just normal paper. It's a thick stock that holds up. What I find crazy is it's thick enough to work and hold up over time and fit in your wallet. I think that was the real trial for me, I didn't think it would fit in the little sleeve in my wallet but they did. I have 3 sleeves in there right now and it's perfect and there's still plenty of room for more.
I haven't had a use for the passport ones yet but they seem just as fine. #sefcard
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I received this product for free or at a discounted price in exchange for an honest review.