Desk organizer-vertical

Hi everyoneThis is my first upload :).If, like me, you have a lot of A4 sheets of paper printed on one side, this organizer might be useful.I divided an A4 sheet into four sections, resulting in a 10.5x15 cm sheet.The organizer is 3 cm high, so it can hold a lot of them. I also added a pen holder so I don't have to search all over the desk for one.Let me know what you think in the comments.I also plan to make a horizontal version.