Environmentally Protective: Expandable Ball is made of environmentally protective material, which is safe and harmless. Breathing Ball is reusable, smooth and has no sharp edges, and will not hurt children's hands. Know the Colors: Expandable Ball has a variety of beautiful colors, and children can open and contract like magic. Rainbow Shrinking Ball can help train children to recognize colors and shapes. In addition, the Breathing Ball has a bell that makes a sound when shaking, attracting children's attention. Parentchild Interaction: Children can play Colored Expanding Magic Ball independently or as a family game with their parents. Excellent interactive games can enhance their thinking and communication skills. Educational Toys: Grasping can stimulate the development of the baby's brain, thereby improving the baby's actual ability. Breathing Ball can also help improve children's imagination and handeye coordination. : Novel Expansion Ball has beautiful color, unique shape and practical function. There is no doubt that the Colorful Inflatable Ball is the perfect gift for children to play with family or friends, promote brain development, and improve their handson ability.