"This toy from Grimm's is not only fascinating and educational, it is destined to become a beautiful family heirloom. Brightly colored wooden slats and pegs can be arranged and re-arranged in many different patterns. When it is finished, jingle bells tumble down the spiral. (47 cm tall)"
Perpetual calendars are a physical way children can see the progression and changing of time. By turning their illustrated wheel, they can match the month with the season, and what visually that season looks like to them. The child’s understanding of larger spans of time are better understood by regularly using their own perpetual calendar. And the fact that it is a circular calendar, they can understand that “time” is an ongoing cycle, easily comprehended on their wheel year after year.