Magz-X 42 Use the wonder of magnetic power to build endless creations. Build geometrical shapes, including pyramids, cubes, spheres and much more. Features: -Includes (12) 2.5" magnetic rods, 9 magnetic X"s and 21 steel spheres. -Multi colored. -Magnetic construction. -Collectible. -Educational. -Powerful rare earth magnets. -Therapeutic, award winner. -ASTM/CPSC Compliant and Safe. -Use for age 5 and up to adult.