14 years & up. This ball is unlike any other! You must first put it together, and then take it apart and design something else! The inspiration for the Y-Ball® is the skeletal truncated icosahedron, an orb-like geometric figure long admired for its beauty, more commonly referred to as a soccer ball. Here are a few popular ways to use it: Use it in a creativity workshop, Use it as a meditation aid to free your mind or just PLAY with it!