Give the pyramid above the base a spin and watch five beautifully colored orbits rotate in midair around a small planet in the center. This toy is a hit at science teacher shows. This attractive kinetic toy will mesmerize for hours. Magical motion demonstrates that every action has an equal but opposite reaction-right before your very eyes! A great gift for anyone! Orbits suspend from a crescent stand measuring 11.5 inches high. Requires two AA batteries (not included).