Chuckit! The Whistler Ball Medium 2.5-inch,

Ready Set Fetch! Give your dog something to jump for with the Chuckit! Whistler Ball. Durable rubber ball keeps the game interesting and challenging for your dog. Four holes in this high bouncing rubber ball produce a whistle as air passes through to keep your dog interested. Grippable rubber ball is made just the right size to use with your Chuckit!® Ball Launcher, sold separately