RFID blocking.Most cards use RFID (radio frequency identification) technology, from credit and debit cards to working key cards;RFID tags are a built-in data transmission feature on many types of cards.When you are in a store, an airport or a crowded street, thieves can secretly scan your card information using an RFID reader.However, the credit card holder provides a protective security barrier that prevents the RFID chip signal from being picked up, keeping your card safe. Metal Design: Made from high quality stainless steel from top manufacturers, the latch is made from solid metal to ensure your RFID card holder is always securely closed. 6 Card Slots: The metal card holder opens to reveal a high quality PVC card slot with 6 separate slots to provide the best organization for your card and easy access to your card.Suitable for all types of cards.ID cards, credit cards, driver's licenses, medical cards, etc. Sleek and Stylish: The surface of this minimalist metal card holder is sleek and smooth to the touch, as well as the slim and elegant design.The secure metal clasp prevents the wallet from accidentally opening during transport, meaning you can easily hide your credit cards in your pocket or purse. The perfect gift: This slim credit card holder is small and sturdy.It weighs only 80 grams and measures 9.5 cm x 6.5 cm x 1.3 cm.Perfect for those who hate bulky traditional wallets and have limited pocket space.This credit card holder is a perfect gift option and we offer it to you in an attractive sturdy black gift box.