Join your favorite magical friends as they teach you to use flu powder to travel wherever your heart desires this year with the 2020 Harry Potter oversized calendar, featuring 13 images with perforations, which allow the pages to be easily removed and displayed as posters. With Harry, Ron and Hermione at your side, youll always be prepared for lifes enchanting adventures. Sixteen months (Sep. 2019Dec. 2020). The oversized calendar measures 11 x 17, includes a hanger, and is spiral bound.