Chuckit!? has combined two of its top-selling fetch toys - the Chuckit! Ultra Squeaker Ball and the Chuckit! Max Glow? Ball - into ONE awesome fetch toy your dog will love! Made from photoluminescent material that is both chemically and biologically inert, this fetch toy glows in the dark and recharges fast under any bright light source. With a 2.5" diameter, the Chuckit! Max Glow Ultra Squeaker Ball can be used with any medium Chuckit! Launcher. It features the same high-bounce Chuckit! Fans have come to love it, including the patented Ultra Squeaker to keep dogs engaged in play. Make Fetch Happen? day or night with the Chuckit! Max Glow Ultra Squeaker Dog Toy.