It is a perfect toy for your baby. Let your baby power the dome by pressing the handle at the top, causing the colorful laughing balls to tumble around each other. Your baby will love the sound and action of the multi-colored balls. This toy also improves developmental skills such as memory and hand-eye coordination. Push the lever to make the colorful balls tumble and make the bell sound! Each ball has unique, cheerful faces that appeal to the child. With the colors and sounds, your baby will not be bored. It also teaches cause and effect and promotes hand-eye coordination.