Japan's most classic notebook, has never changed the design since 1947. The only Tokyo-based water-repellent ink line is used to provide the most comfortable handwriting feeling, and the binding method is used to bind the notebook, so that the swallow notebook is more sturdy, the paper is made of neutral paper without fluorescent agent, and the faint yellow is used for a long time and doesn't hurt the eyes, and it can be preserved for a long time. The left of each notebook cover is printed with gold lettering "W30S" or "H30S". W, S is the abbreviation of the founder of the swallow notebook. This golden type is a symbol of his pride in each notebook.