PuniLabo Stand Up Pen Cases are the perfect companions for any stationery lover. Each animal pen case can be zipped closed for easy transportation, and transformed into a pen cup to hold your favorite pens and pencil upright on a desk when you are ready to use them. Simply place your writing supplies in the body, your eraser in the elastic on the top, and zip closed. When you want to use the contents, open the case, press the bottom down on a desk, and watch the case transform into a cup that pushes your writing supplies upward to make them easy to see and use.