This PU polyurethane stress ball, 1.57 inches, is tough, non-toxic and has a smooth, non-stick exterior so it can be wiped clean with paper soaked in water. Very compact, lightweight and easy to carry. In addition, they are lightweight and easy to carry around, suitable for children, school teachers, teenagers, office workers, athletes, the elderly, injured people, etc. Squeeze and play almost anywhere to relieve stress.
