Blocking: Most of cards are using technology(Radio Frequency Identification), from credit and debit cards through to work ID key cards tags are an inbuilt data transmission feature in many types of card. Thieves can scan your cards information by using a reader secretly when you are in stores,airports, or crowded streets.However, BONSYL credit card holder provide a protective security barrier to stop the chip signal from being picked up,keep your cards safe. .Metal Design:Made of quality stainless steel materials from top manufacturer, the latch is constructed by strong metal that ensures your anti Card Holder is always tightly shut.Provide all of your important cards the protection they need from the rougher environment. .6 Card Slots:The metal card holder open up to reveal high quality PVC accordion design slots,featuring six individual slots for your cards.Provide best organization, easy for your cards in and out. Fits various types of cards: ID Card, Credit Card, Driver's Licenses, Medical Cards, etc. .Classy and Fashion : This minimalist metal card case has a surface that is classy and smooth to the touch, as well as being slim and sleek in design.A secure metal clasp stops the wallet from accidental opening in transit which means that you can easily hide your Credit Cards in your pocket or handbag. .Perfect Gift: This slim credit card holder is small& tough. It only 80g weight,dimension 9.5cm x 6.5cm x 1.3cm.Perfect for people who hates bulky traditional wallets and has limited pocket space.This credit card holder is a perfect gift choice and we offer a beautiful sturdy black gift box for you. .