A high-spec pen case that you will want to use
It has a very simple design that does not appear multi-functional, but it is also cool.
When opened, it can store A7 size memos, so it can be seen as a notebook cover.Even the thick barrel pen can be used to hold a long time.
To use it as a pen case, simply fold the top of the pencil case and fold it in half in the middle and snap the back button.(Button top and bottom two places)
If you use it as a regular shape, it will fit in the inner pocket with a wide back of the suit, and there is no rounded or corners inside the bag, so it can be stored neatly without being bulky.