Cute design and bright colors. When the battery is installed, press the switch (metal button on the ball's waist) and the ball will jump with music and luminous colored lights. Made of non-toxic plastic and rubber, very strong, bite-resistant and does not harm teeth. It can prevent pets from destroying furniture, shoes and cables. It also promotes your pet's intellectual development as well as physical and mental health, so people can't get enough of your pet baby. Train your dog's movement ability and help your pet learn to chase, catch and return. Owners and pets play together, but also to improve the relationship between pets and owners. Material: plastic + rubber Power supply: 4 AA batteries (not included) Color: Blue Size: 11.5 * 11.5 cm Package Included: 1 bouncing ball