- It is a slim and easy-to-carry binder
- Uses a smart ring that allows the cover to be folded back
- The cover can be folded back, making it slim and easy to carry, and saving space
- The ring diameter can accommodate up to 60 cards, so if you add an index, you can use it for multiple subjects
- Since the stopper function is added, it will not open carelessly in the bag
- Recommended original base paper for writing/Sarasara base paper is hard to bleed and ink is hard to see through to the back. In addition, it is a neutral paper suitable for long-term storage