16 pcs RFID Blocking Sleeves, Secure Credit Card Protection Shield w/USPS Track

16 pcs RFID Blocking Sleeves, Card Protector, Credit Card Secure Protection Shield FIPS 201 Approved by the US Government as Electromagnetically Opaque Shield Weather- and water-resistant Puncture- and tear-resistant Shields ISO 14443/15693 and EPC Gen 1/Gen 2 contactless smart cards and RFID tags   Important Details about RFID:  Radio frequency identification (RFID) is a technology that uses communication via electromagnetic waves to exchange data  between a terminal and an electronic tag attached to an object for the purpose of identification and tracking   With credit cards and debit cards, RFID chips hold all of your most sensitive information such as card numbers, expiration dates, names, addresses, birthdays, and more. Thieves can purchase scanners online or build their own to steal information right through your wallet or purse. Protect your personal information from thieves and unauthorized transactions with these RFID Blocking Credit Card Sleeves. Enjoy peace of mind know