3D Luminescent Silicone Autism Antistress Unicorn Ball Bubble Decompression Educational Toy Push Squeeze Bubble Anxiety Relief for Kids Adult Fingertip Vent ToyFeature:The rules of the game are simple and easy to understand, and it can be played by children and the elderly. It is also a very good family parent-child interactive toy game.Small size, can be squeezed and pulled without deformation, easy to store, easy to carry.Brain logical reasoning, verbal and mental arithmetic, odd and even numbers, overall planning and other abilities to prevent brain degeneration.When you press the bubble key, the bubble will thump slightly, then flip it over and start over.