Secrid 'Cardprotector - Blue' Wallet. Designed and made in Holland. The ultra thin Cardprotector, made of aluminum, protects your cards from bending and breaking. Moreover, it prevents wireless identity them by acting as a firewall for your RFID and NFC cards. The Cardprotector features an innovative sliding system; with just one simple click all the cards will slide out gradually, ready for use. Depending on whether the cards are embosed or not, the Cardportector can hold four to six cards. It is an outstanding combination of design and engineering.