- Childrens mental arithmetic training stress relief toy - 100% Brand New - When you feel stressed or axious at work/life,the push pops bubble toy can help you relax. - Non-toxic, tasteless, will not cause any harm to humans and pets. - Just press the bubbles down and they make a slight popping sound; then flip it over and start again! Endlessly reusable and washable, too. - Bright colors and pleasant sounds are sure to please any child! - It's super simple and quick to get started. - Logical reasoning, planning ability, prevention of brain degeneration. - Portable, anytime, anywhere, lightweight. - Ideal gift for your friend. - 4 Colors and two shape for choose.