The Chuckit! Petmate Ultra Ball Bounce and Floating Fetch Foam and Rubber Dog Toy is designed for the most demanding use; the Chuckit!® Ultra Ball® is not your dog s ordinary ball. Simply put; this is the best ball for the game of fetch. Developed to have high bounce; high buoyancy; high visibility; and high durability. The Chuckit! Ultra Ball promises to outplay the ordinary. Can be used in the water and is designed specifically for the game of fetch. Features an extra-thick rubber core and quality material that floats. The bright color gives increased visibility and helps to prevent the ball from getting lost. Compatible with Chuckit! Launchers.