【Fingertip Ball Design】: This 3D Pop Fingertip Ball combines the design of the most popular bubble pushing fingertip game toy. It's smooth to the touch and can be held in one hand, with a gentle squeeze to release pressure. It is a portable stress ball that you can carry and play anywhere, at the office, at home, outdoors, or even while traveling. Fidget sensory toy with pops, great fun and stress relief 【Release Anxiety and Stress】: Sensory fidget toys just press the semi-circular bubbles protruding from the sphere, they will make a slight popping sound. It's not like bubble wrap, but you can also have a lot of fun. Also this 3D pop fidget sensory toy is designed with a safe and user friendly experience in mind, it is made of food grade silicone material. Size:as picture Material:silicone