Grapat The Rhythm of Life Existential Calendar Educational Toy Ages 3+The Rhythm of Life is an existential calendar which makes the comprehension of the concept course of time easier for children. Each colour represents a month of the year, and at the same time they represent the four seasons. However, there are other colours which indicate special dates. There is a ribbon which marks the change of seasons. This material can be put together all at once in advanced or by threading one ball a day. The different materials