Donalworld Waterproof Business ID Wallet Aluminum Metal Plastic Card Holder Click button for easy opening and closing It also helps to block RFID scanning of your credit cards by thieves. Note: Waterproof design, but can not be put in the water Aluminum metal prevents hacking or accidental reading of your contactless payment cards and protects cards from demagnetization damages It protects your cards clean and undamaged, elegant design and makes your business life convenient and effective! Designed for money, business card, credit card, ID card, and any other cards. Size:12*5*10cm(L*W*H)