Description Designed with rainbow colors and rounded shapes, this squishy fidget toy is made of non-BPA and non-toxic silicone, which is durable, clean, and 100% safe. Stress balls are not easily deformed or punctured and are comfortable for touching. The 3d push pop ball will slightly sink downwards and make a popping sound when you press the bubble button, allowing you to relieve anxiety and vent pressure. Comes with 1 ball.