The exterior is covered with cowhide leather, giving it a luxurious and design. It is also a highly functional security wallet. Aluminum case prevents skimming and protects important data from crowded trains and other crowds. Aluminum storage case that can store credit cards and IC cards in public transportation such as SUICA. Prevents cards from being bent or damaged while preventing unauthorized access (skimming) from the party. Holds up to 6 cards. It is a compact wallet that can store not only cards, but also bills and coins. Please note that the leather pattern may differ from one piece due to the nature of the item. "