Safe & Non-toxic Materials : The music jumping ball is made of ABS plastic, which is not only safe and environmentally friendly, but also resistant to high pressure and high temperature, and the surface is round and lustrous. The surface ofthe shake Dancing ball has a small silicon gel angle protruding, it is soft and comfortable, convenient for the baby to grasp, also can massage the baby's hands, to improve the baby's comfort. Early Childhood Toys: This cute electric bounce ball encourages curious babies and toddlers to jump, dance and crawl as it vibrates on its own and rolls across the floor. Fun sounds and happy music can encourage children to explore and learn new things.And the Teenage dance ball can train children's eye and hand coordination and foster creative imagination. Two Mode Switches: The baby ball game has two modes, fun and playable, available for choice, give children more choices, let children away from loneliness. The left switch means off. The middle switch means that the ball will jump for 5 seconds And playthe song when you hit it. The right switch means that when the ball hits again it jumps for 10 seconds and plays three songs. The music vibrating dancing ball requires 4 x AA batteries, not included. Parent-child Interactive Game: The self-bouncing music ball is not only a baby's own toy, but also a good parent-child interactive toy. When a parent or friend throws the bouncing ball for toddlers, Children have the opportunity to practice teamwork ,hand-eye coordination and important social skills. Let parents can accompany their children to grow up in a pleasant play. All Products From Us Have Undergone Strict Quality Checks. if There Is Any Quality Problem Or You Are Not Satisfied With The Product contact Us. we Will Give You The Best Solution.