Shop / Toys / Chuckit! The Whistler Dog Toy Petmate Chuckit! The Whistler Dog Toy 2 Pack, Medium $11.99 Sorry, this product is currently out of stock. Information 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. 4 holes in this high-bouncing rubber ball produce a whistle as air passes through to keep your dog interested. Grip able rubber ball is made just the right size to use with your Chuckit! Ball Launcher Customers also liked Customer Reviews