Usage 1. For entertainment: Press on the protruding bubble on the ball with your fingers, you will hear a "pop" sound; and there will also be popping sound when you squeeze the ball to restore the bubbles. 2. For stress relief: Squeeze and knead the sphere at will to relieve pressure and release negative emotions. 1.Select any bubble to press 2.When you press the other bubbles, the compressed bubbles will bounce back and make a POPPING sound. 3.The ball feels comfortable, squeezing the ball will also make a POPPING sound. 4.The ball is made of flexible silicone and can also be played as a regular ball. Read more 1. Material: Silicone; Size: 6.5cm / 2.6in; Color: As shown in the picture 2. Relief stress and reduce anxiety; Squeezing and stretching without deformation. Read more Push pop bubble fidget popper is a great gift for everyone This push pop popper fidget toys Bouncing Ball are novel gifts for girls, boys, kids, adults and friends