Material:100% polyester Size:8cm，10cm,15cm Package include:1 piece ball Features: 1. The multi-color product is made of a variety of materials. It will stimulate baby's tactile and visual development. 2. You will hear a beautiful sound when swing the ball. 3. It can exericse the child's hand strength and flexbility. 4. Parents can play with children to enhance the communication. It will do great help for the development of children.