These fidget toys are made of high quality silicone material, safe and non-toxic, lightweight. The sensory toys are resistant to falling, abrasion, and extrusion, endlessly reusable and washable! Parents can rest assured,to buy for your children. Two fidgets toy players take turns pressing any number of bubbles, and when one of them leaves the last bubble, he win. Hearing the “pop-it” sound during the fidgets toy game will make people very relaxed and relieve troubles.