Buwico Bouncy Ball With Led Light Flashing Ball Bouncing Football Battery-Powered Toy for Kids (Random Color) Random Color.Diameter: 11cm/4.3" (Approx.) Power: AA Batteries (Not Included) The ball can be divided into two halves with a few buckle, pleaes open it gently , you can find the plastic box inside . Open the box and put the battery in. Singing dancing flashing soccer will surely attrats your baby's attention, also very funny to play with. The ball can jump through rubber net, when you put the battery in ,the music function works,you can find the silver turn on button in the middle of the ball