Rainbow Vision Sand Picture -- Charcoal Screenie Mesmerizingly different with each turn. A sandpicture will do several times a day what Mother Earth takes millions of years to accomplish. Watch mountains, valleys and dunes create before your eyes! 4.33 x 6.66" in size. Plastic frame and base. Great educational gift for children or grandchildren. Check out the Pitkin Stearns website to see the 30+ Scientific Principles! Handcrafted in Lustenau, Austria by artist Klaus Bosch.