Made Of Silicone & rABS. Recycled ABS (Acrylonitrile Butadiene Styrene) Is Obtained By Melting Down Post Consumer ABS Plastic To Create New ABS Plastic. Press Bubbles Down To Relieve Stress. Encourages Focus And Provides A Soothing Sensory Experience. Provides A Calming, Self-Soothing Sensory Outlet. Make Your Own Pattern By Pressing On Different Bubbles Or Just Press For Fun. Spin Case Between Thumb And Middle Finger To Reduce Stress And Boredom. Provides Tactile Stimulation. Fun For All Ages 3+.