SnowMan ☆ Ren Meguro Regular Pass Case / IC Card Case Can hold things like a My Number Card, etc. The back is clear. It's a transparent surface. Height: Approximately 103mm Width: Approximately 65mm Thickness: Approximately 0.5mm ♡ High-quality PVC material It's well-made, so I think it's durable. Cards are very easy to insert, and it comes with a keychain-type chain. (As shown in the photo) I don't have any pets or smoke, so please rest assured. I am committed to careful service and packaging. Thank you for looking.