This beautiful block perpetual calendar is made of ABS material. Simply assemble the pieces like your favorite building toy to create a perpetual calendar, with each piece paired with a cartoon character! These puzzle pieces feature weekdays, dates, and various icons to help you plan your year! Not only does the Puzzle Calendar keep your brain focused on your busy schedule, it also keeps your fidgety fingers occupied – it has the added benefit of letting you play with puzzle pieces while you work. Choose from a variety of colors and customize by adding your school, sports team, organization or company logo, badge or message.