Rainbow River Stones The Rainbow River Stones from Weplay encourage creative play and interactions while also providing children with sensitivity, feeling and balance training. This set of six stones mimics the random flow of nature and can be used to create many free style routes for children to explore. Each stone features a texture on the top designed to stimulate the sole of the foot. Stones also have three directional points, this challenges children to pay attention to size and direction when piling stones on top of each other. Playing games with the Rainbow River Stones promotes coordination, encourages learning interest, improves balance and boosts self-confidence. Rainbow River Stones include a handy portable storage case. Recommended for children age three and up.