Say hello to the Spitball solution. No more germy mess that can spread disease and make you work harder than you need to. These crystal clear Spitball polymer spheres just need to soak in water for four hours or more to grow over 200 times the original size. Then you can toss, pelt, splatter these Spit-sters anywhere you’d like. They bounce when thrown softer and explode when thrown hard! Ages: 3 and up (with parental supervision due to science). Safe and non-toxic but do not swallow or eat.