An exciting hands-on tool that teaches children about color combinations. By simply rotating the dinosaur s back plates children can use the transparent color windows to visually mix colors. Twelve colors around the outside of the wheel can be combined with five colors on the dinosaur s back, making sixty color combinations possible. It is an ideal accompaniment to a basic watercolor or tempera set, allowing children to create the colors they have combined on the wheel. Suitable for ages 4 and up.