Shock Brain Creative Ball 30 triangular prism blocks They are magnetic I bought this when my child was 4-5 years old, hoping to foster their creativity, and we made various shapes together until they were in the lower grades of elementary school. It became less frequent that they would pick it up and play with it, and it was left as an object in the living room. *No box or instructions included. You can find hints for various shapes by searching online. The blocks will be disassembled and packaged separately, not as a sphere. Type: 3D Puzzle