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 the payment card industry.
How does the RFID protection card holder work?
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 does 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.
New Gift Package:
A very nice gift box replaces the previous carton box. This new gift package will protect the RFID Blocking Card Holder better. Best choice if you are looking for a gift.
This metal card holder feels very high quality and well made, should be able to last for years. It has some weight to it so you can feel it inside your pocket, but not too heavy to become a nuisance. I've been looking for a small wallet to hold travel essentials (ID and a few credit cards) and this card holder gets the job done. It has 6 compartments for cards and if necessary, you could fit more than 1 card in each compartment. The compartment width/size is just right for cards. I can insert or remove cards smoothly in the compartment yet the cards don't fall out by accident.