Use these Smoothfoam unpainted planets to create your very own solar system diagram! Each package contains 9 planets and a sun ranging in size from 1 inch to 4.5 inches. Construct the diagram with 12 inch wooden connecting rods, the 3 inch Smoothfoam base and an eyelet screw for hanging. Don't forget about adding Saturn's rings! Paint the planets in every hue to add some color to your galaxy. Directions to construct the diagram and fun facts are printed on the box.