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. Compatible with Chuckit! Launchers. These top-selling balls are available in sizes small, medium, large, x-large and xx-large, with one and two-pack options. Durable dog ball perfect for fetching Made from natural high-bounce rubber Great for pools and ponds