Baby music shake dancing ball toy: The corner of the ball is soft teether material.And there have many small dots around the corner.It can massage baby`s hands to improve baby`s comfortably when baby catch the ball. Toddlers will giggle with delight while playing with music shake dancing Ball, but this toy is also a valuable learning tool. Through observing, moving, grasping, crawling and hopping, children discover new things, build strength and confidence, and improve gross motor skills development. When siblings, parents or friends toss this ball toy with a young child, the little ones have an opportunity to practice teamwork, hand-eye coordination and important social skills. How Does it Work? The left switch means that`s off. The middle switch means that the ball will jump for 5s and play the song when you pat the ball. The right switch means that the ball will jump for 10s and play 3 songs when pat the ball again. Fun to beat happy to walk. The main body is made of ABS material, and the protruding part is TPR material. Suitable age: More than 18 months. You need 3 AA batteries (Battery not included) Package includes 1* Baby music dancing ball