It is made of food grade silicone. Decompression Silicone Magic Suction Cup are perfect for people with focusing trouble and excess worries, it helps calm down your mind by occupying hands, you can playing, squeezing, stretching and flipping the fidget toy packs to soothe stress and appease worries when you feel anxious or bored in the office working, meeting, writing, designing and waiting, etc.
