[Multi-functional Expanding Ball] The magic ball can easily expand and contract, offering a variety of ways to play. Children can experience excitement and fun with its amazing movement, expanding greatly when thrown and shrinking again. This expanding ball naturally trains fine motor skills and physical abilities, supporting growth while playing. It's a versatile toy that the whole family can enjoy. [Material] Polypropylene [Dimensions: Weight] 16 x 16 x 16 cm, 105g