The bottom layer has a chylophone so you can enjoy not only movement but also soft tones. As your hands and fingers develops, this toy is a great way to take a step up from "squeezing" to "pinch". Balls are not intended to be played in their mouth. To avoid accidentally putting it into the mouth, please be sure to play with adults until around 3 years old. Tuned sound discs
The included wooden balls are not intended to be played with their mouth. To avoid accidentally putting it into the mouth, please be sure to play with adults until around 3 years old