J.Y. Memorize 3D pop fidget ball 4 Packs, made of non-toxic silicone,can relif stress and anxiety for girls and boys. Stress Relief Toys Not only does it relieve stress, this pink white green blue 3D pop stress ball fidget can also train children's thinking skills and color recognition skills. is a good home education solution. Why choose us? Safe Material: Made of non-toxic silicone, this pop fidget ball is safe enough for kids. Release Pressure: The 4pcs fidget balls popper just needs to be pressed lightly to make a slight "pop" sound. For Kids and Adults: The bubble fidget popet balls helps improve mood, is a parent-child games, for children with autism. Gift Choice With this fidget ball, you can play family games, fill the boring time of the elderly, exercise children's thinking, and interact with pets. It's a thoughtful gift for anyone.