Let your dog choose which ball to fetch with the Chuckit! Fetch Medley. A three-pack of fetch balls that come with one Chuckit! Max Glow Ball, Chuckit! Whistler Ball, and Chuckit! Rebounce Ball. For night time play, grab the Max Glow Fetch Ball that glows brightly in the dark and makes it easy for your dog to find. Use the Chuckit! Whistler Ball to grab your dog's attention as it whistles through the air. For a higher bounce during playtime, use the Rebounce ball. All compatible with Medium Chuckit! Launchers. Make Fetch Happen anywhere, anytime with the Chuckit! Fetch Medley.