The Amazing UFO is a unique fun-filled activity craft which combines science and art. Originally invented over fifty years ago by a mathematician at Princeton to amaze and inspire fellow colleagues, the UFO is of timeless design. Genius is stimulated during assembly when the object goes from flat 2-dimesions to a 3-dimensional rotatable ring. Two models per package. (1- Rainbow Colored and 1- Color-it-yourself). Ages 4 and up.