Size 95 x 65 x 13 mm (3.74 x 2.56 x 0.51 inches) What is RFID? Quoted from Wikipedia: Radio-frequency identification (RFID) is the wireless use of electromagnetic fields to transfer data, for the purposes of automatically identifying and tracking tags attached to objects. RFID tags are used in many industries, especially in payment card industry. How the RFID protection card holder works? Keep in mind that RFID stands for Radio-frequency identification, which is the wireless use of electromagnetic fields to transfer data. A person with the intent to steal your valuable information through an RFID scanner in close proximity to your valuable cards can only potentially scan cars of yours that have a magnetic strip, ie debit cards, credit cards, building access proximity cards and other similar such cards. While your Social Security Card is VERY valuable to you, the number cannot be read via an RFID scanner because it is simply a piece of paper with a number on it. So there is no need to protect it in an RFID sheath. However, I am aware that some do have magnetic strips. The Holder do not block RF signals like those used in RFID. The RF signals are blocked by the metal (such as aluminum) using an electromagnetic device known as a Faraday Cage. The metal creates an area which is impervious to external RF waves, making it impossible to read the RFID cards. The pockets are merely there for organization purposes.
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