Melissa & Doug My Monthly Magnetic Calendar. Keep life organized with this wooden magnetic perpetual calendar. Open the hinged boards to reveal a calendar grid on one board, while the other board keeps all the magnets close at hand. A sturdy cord is attached for hanging. These dry-erase boards include 140 magnets including years, months, days, and most holidays and childhood activities. Is approx 15 1/2" x 11 1/2". The calendar is in good, used conditions with no known damage.