Material: silicone, high quality, safe for children, soft and comfortable when touching. It is washable, durable, and can be repeatedly used for a long time. Easy to play: This fidget toy is easy to play with, just press the mouse down and they make a slight popping sound; then flip it over and start again Anxiety and Stress Reliever: Whether you want to naturally relieve accumulated stress or anxiety caused by work overload, school or personal issues or you simply want to surprise your little one with a fun, enstertaining toy that will keep them engaged for hours, this fidget pop it toy set is the perfect solution Notes: Due to the lighting effects and shooting angles, there is some color difference, please understand.