Tangle Matrix Airless Ball - Comes in various colors and floats in water. Safe for all ages and fun in the pool as well as out! It is the first patented ball to have a fantastic bounce without being solid or relying on compressed air. Easy to throw, the Matrix Ball curves just like a Wiffle ball. It's also great for hitting and catching, so you can use it for all your favorite sports or invent your own Matrix Ball games.