These circle shaped poppers are great for all hands!  When you press the bubble, there will be a slight sound. A great sensory toy for all ages, press it again and again. Soft buttons, comfortable touch, promote tactile stimulation. It can relieve people's stress, release anxiety, rehabilitate your mood and get rid of boredom during daily life. The popping fidget toy suitable for those suffering from ADHD, autism, anxiety, and other calming needs etc. The colorful dimples  are made of high quality smooth rubber.