It is this water-filled ball features that is elastic, so it won't break even if your child jumps on it, and it's great for your kids to play with.This water-filled ball can be filled with water to make it cool to the touch, so your child can have a cool and happy summer day.Using high-quality TPR material, this product is sturdy, and shake-proof.There are two sizes to choose from: S, M, LIt is suitable for outdoor and home use such as swimming pools, beaches, etc.Item Name: Water-filled BallMaterial: TPRColor: Blue, Yellow, Green, PinkFeatures: Giant, Elastic, PortableSize Details:S Water-filled Ball Max Diameter: 40cm/15.75" (Approx.)M Water-filled Ball Max Diameter: 60cm/23.62" (Approx.)L Water-filled Ball Max Diameter: 80cm/31.5" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Water-filled Ball1 x Blowpipe