Aluminum minimalist wallets are a great alternative to traditional bulky wallets. With a custom engraving you can have your wallet show your pride in your hobbies and interests. These metal wallets easily hold 10-15 cards and has a money-clip on the backside to securely hold cash. Each wallet come with nice storage box with screwdriver include for adjustment. RFID blocking technology is used on the wallets. The metal plate in the wallet blocks the signals. Each wallet contains easy to follow instruction card.