Let your dog choose which ball to fetch with the Chuckit! Small Fetch Medley. This 3-pack of small fetch balls comes with a small Max Glow Ball, a small Erratic Ball, and small Whistler Ball. For night-time play, the Max Glow Ball glows bright making it easy for your dog to find. The Erratic Ball features a unique shape that makes the ball bounce in an erratic path, giving your dog something exciting to chase. The Whistler whistles as it's thrown in the air, keeping your dog engaged in play. Ideal for small dogs, use these small balls alone, or with your compatible small ball Chuckit! Launcher (sold separately). Make Fetch happen anywhere, anytime with the Chuckit!