Review on Synthetic Leather Stainless Elegant Men's Accessories - U F 037 by Zach Spangler

Durable and protects the cards. Holds multiple cards. Three considerations: The strength comes from the steel frame, which makes it a little bulkier than most card holders, but protects the cards very well. It also makes it inflexible by limiting the number of cards you can put in it. This is important if you use a card holder to store the cards you collect from meeting people. I don't care either, but only one slot. If you choose to separate your cards from your collected cards, they will not be kept separate.