Made with 100% High-quality Thermoplastic Rubber, Nontoxic, & Free of Bpas. the Stress Relief Ball is Soft & Will Not Hurt the Child, Which Strengthens the Emotional Communication Between the Parent & Childrens. These Sticky Ball Can be Thrown on the Wall, Wait for Ball to Slowly Fall Off, Then Catch It. When You Are Confused, Toss the Ball at the Ceiling Will Help You Relax.