Quality Materials Dna Stress BallThe stress ball toy is made of Non-Toxic thick thermoplastic rubber (TPR) outer layer, easy to clean. which is highly durable and can be squeezed repeatedly. Colorful DesignStretchy stress balls fidget toys , The water drop pressure ball has a sticky texture, which brings a richer sensory experience, perfect for restoring focus and relieving stress or anxiety. Sensory Stress BallThe cross use of texture balls will give you many different touches and joys. The transparent and smooth surface can relieve stress and anxiety, and the pointed surface can relieve sensory stimulation. This is a good calming tool. Hands & Wrist ExercisePerfect for those who use computers or do more hands-on work, Squeeze ball can help stimulate muscles and tendons, thereby alleviating the pain caused by carpal tunnel syndrome. Stress Ball for Kids & Adultsmade of Non-Toxic thick thermoplastic rubber (TPR) outer layer,Eco-friendly and Non-toxic. safe and non-toxic for kids and adults alike. Light weight, good hand feel, strong structure, good durability, practical and not easily damaged. Have fun and don't worry!