The balls come in vibrant colors and are great for sticking, stacking, squishing, and more , It is ideal for stress and anxiety relief, enhanced blood circulation. – You can throw these balls on the wall or ceiling, the sticky balls will stick for 3-10 seconds, and then slowly fall off. – A fun toy that can effectively help for kids with add or ADHD and people with high stress level. – They easily wash clean with soap and water , when you feel the viscosity is reduced and the surface is dusty, you only need to rinse with water . – This Super sticky squeeze toys never leave a sticky residue behind, and remain sticky even after being washed. – Great for kids, age 4 & up.