This is a Wallet Stand for iPhone from SATECHI, an American brand specializing in device accessories. It's an Apple-exclusive model, purchased about a year ago from the Apple Store. The retail price was 7,800 yen. It wasn't always attached to my iPhone; I only used it when I wanted to use the stand function. I used it for about 1 to 2 hours a day. The folding mechanism hasn't loosened, and it maintains the same folding stiffness as when I bought it. I always kept cards in it: two inside and two outside. I took them out about once a day, so the card pockets probably have some card imprints. With this type of wallet, there's a concern about cards falling out, but this one applies strong pressure when folded, so the cards never slipped out. The hardware is durable, the cards don't fall out easily, and the design is good, which is why I'm selling it, as I've replaced it. I wouldn't want to pay 7,800 yen for a new one, but I recommend it to people who want to try an Apple official exclusive product. I've also used a similar product from MOFT, but personally, I prefer this SATECHI one. However, it does have some scratches, so please understand that before purchasing.