This Moving Sand Scape Decor is made with different colored sand, air, and a water solution in between two glass panels. The combination and perfect balance of all these elements is what creates beautiful landscapes. When you turn your moving sand art upside down, the sand will naturally fall, and the air bubbles rise. Gravity pulls our proprietary blend of fine-grained sand through the air bubbles to create a unique 3-D landscape each time. You can regulate the amount of air in the collection of sand art which will result in a faster or slower flow of sand.