Make your own super balls and create bouncing collisions! Learn about inertia, energy blasters and super elastic collisions! This 9.75x10x2.75 inch package contains red water based molding granules, four molds, safety goggles, plastic tubes, dowels and detailed instructions. Recommended for ages 8 and up. WARNING: Choking Hazard, small parts. Not suitable for children under three years. CAUTION: Contains some chemicals which can be a health hazard. Use provided eye protection. Conforms to EN 71, CPSIA and ASTM. Imported.