Specifications: two water chestnut ball on the widest distance 13.5CM， the actual ball diameter 9.5 cmColor: blue / yellow / red (sent at random) Material: plastic ball， water chestnut rubber materialWeight: 0.15kg Color: color and style as shown Features: bright colors， sleek and lovely， sing beautiful songs Replace the battery after the song was random. A pleasant surprise for you baby. After the toy battery installed， press the switch (at the ball waist metal buttons)， the ball will send out good music and gorgeous lighting， and non-stop dancing， water chestnut will be flashed colorful light， because there is water chestnut role， when it beat very elastic jump this electric toy is designed for babies， it beats the time: the baby will be dancing and the beat， just beginning to learn to walk the baby will be chasing it ran or crawled oh (baby toddler toys). Description: The battery is to bring their own Oh， the ball can be divided into two halves， the ball waist three buckle， gently open， and then open the box above the battery cover you can put the battery inside. Just click next to shrapnel， battery cover opens. Water chestnut on the ball can be removed.