JFL-1 Math 6-square cross reader included Japonica Friend Math Showa Note 4901772075165 (10 sets)

B5 size (semi-B5) 179 x 252mm B5 size study book with subject names. The ruled color is based on scientific data and is easy to write on. ◆Standards: 22mm square 10 x 6 with cross leader ◆Binding method: Thread binding ◆Number of sheets: 30 ◆With subject stickers ◆Cover: Blue