This is a trading card binder from MUJI. It's a 30-hole binder and comes with refills. Both the binder and the refills have been used. Please understand that these are used items. Trading cards were stored in sleeves. The sleeves used were from Seria. The size is written on the upper right of the bag. There are also images of trading cards stored in the sleeves, so please refer to them. ⚠️ Trading cards and sleeves are not included. Instant purchase is OK. There are 15 packs of 10-sheet refills. There are 7 sheets of 4-pocket refills. The material is different. There are semi-transparent and transparent ones. The 4-pocket refills are slightly peeled at the top, although it's difficult to see in the image. Please be aware of this. Please read the description carefully before purchasing. If you have any questions, please comment.