With their bright colours and age-appropriate designs, these puzzles attract the youngest children, in particular, and inspire them to try and find out. These puzzles show: the most important stages in a person's life, the 4 seasons which will give children an opportunity to familiarize themselves with the 4 seasons, and a chance to learn about our solar system, planets, moons and stars. Each puzzle has a diameter of 19.5". 49 pieces each. Ages 4 and up.