These Pop Ball Toys Are Great for Ages 5 to 80. Easy to Learn, They Develop Childrens Intelligence While Allowing Adults to Create New Ways to Play. Made of High-quality, Soft, Eco Friendly Silicon - Washable, Durable, & Reusable. Effectively Relieves Anxiety & Stress. Ideal for Autism, Adhd, Elderly, Childrens, & Overworked Adults. Lovely Bright Colors Bring Happiness & Serve as Great Interior Decoration. a Perfect Interactive Toy for Parent-child Play, Bringing Fun in Every Round.