You can choose the cover and mount to create your own Sara book.
Since it is a specification that only needs to be bundled with an elastic band, you can combine the cover and the replacement mount (refill) to create your favorite book.
It is possible to customize freely, such as changing the color of the cover and replacement mount, or changing the replacement mount inside to a combination of solid color and pattern.
* To make an original book, please prepare a cover and a special replacement mount (2 types).