Just press the bubble down and they make a slight popping sound, then flip it over and start again! This Pop it Fidget Toy may help you relieve stress and anxiety by pressing bubbles to simply pass the time. Calm them down, relax and focus when people feel stressed or anxious at work/ life, is fantastic for kids with ADD/ADHD, OCD, autism, or people with high anxiety. The push pop bubble toy is made of high quality silicone, 100% environmentally friendly. Pure color ,non-toxic and tasteless. Can be reused and cleaned for a long time(Washable). The pop bubble sensory toy can train children's calculation ability and planning ability, promote brain development.