Read and Play! Crank the traditional Tin Box "Jack-in-the-box" (inside which the very hungry caterpillar is hiding) and it plays the classic "Pop Goes The Weasel" and up pops Peter, to the delight of all. The box is decorated with scenes of The Very Hungary Caterpillar and measures 5 1/2" square and 7" tall. When open it is about 9" tall. The best part of this package is the Story Board Book that comes with it. "The Very Hungary Caterpillar" by Eric Carle. It will be a source of many happy moments. The Very Hungry Caterpillar Board Book is also Included.