3 + 1 Reasons Why This Is The Best RFID Blocking Protection Card For You! ·Easy To Use: You don?t need to have a degree in mechanics in order to use our card; you simply place your credit/debit cards near it, and you?re done! ·Slim & Compact:The fact that it has the same exact size as your credit cards, with a thickness of just 0.50 mm, makes it extremely versatile; you can put it in your wallet, your cardholder, or even your pocket! ·No Need For Batteries & Chargers: You don?t need to worry about needing extra equipment. Our card will use its own ?enemy? as a power supply! As soon as the blocking card ?encounters? a scanner in your surroundings, it draws energy from it, in order to create a powerful electronic field, making any 13.56 Mhz cards invisible to scanners! ·Superior Quality: We at koliang make a point of using only the best quality materials for our RFID/NFC Signal Protection cards! OUR RFID / NFC BLOCKING CARD OFFERS 100% PROTECTION FOR BANK CARDS, DRIVER?S LICENCES AND PASSPORTS ONLY, BECAUSE THEY ALL OPERATE ON A FREQUENCY OF 13.56 MHZ. MOST INSTITUTIONAL ACCESS CARDS AND DEVICES OPERATE ON OTHER FREQUENCIES, SO OUR RFID CARD CANNOT PROTECT THEM. Test it yourself! The easiest way is at a checkout at regular supermarkets. When you have to pay, place our RFID Blocking Card on top (or bottom) of your payment card and approach it to the contactless reader. You?ll notice that your payment card will seem invisible to the reader, or you will get an error message.