I searched for the same product online and it appears to be a slip-on inner card case. I intend to use it inside a long wallet, and I remember buying it at a stationery store attached to a bookstore. It also seems suitable for a planner. - Color: Black - Material: PVC - Size: Approximately 15cm x 7cm - Other: 6 pockets + a free pocket on the back, leather-like texture Image 5. The text is difficult to read, so I had AI read it, and it says in Latin: Scientia est potentia / Knowledge is power There is some slight creasing due to aging, but it is new and unused. Please understand that this item has been stored at home for a long time before purchasing. I will reinforce it with cardboard and ship it via Yu-Packet Post Mini.