Design and function in a new form: The card protectors from SECRID combine modern style and a patented mechanism for the billfold of tomorrow. The Porsche Design x Secrid Cardholder is compact in size but offers a surprising amount of space. With a single movement, you can release the popup function and your cards move out of the safe aluminum sleeve into your hand. The solid case protects against bending, breaking, and undesired RFID and NFC communication. Metal housing with popup function for up to 4 cards Leather sleeve with additional space for 6 further cards Banknote compartment with folding aid Approx. 2.6"L x 0.8"W x 3.7"H Item Weight (Lbs.): 0.2 Leather/Zamak alloy/aluminum Lining: Polyester Trim: Leather Imported