Chuckit! Mini Ball Launcher Pint-sized dogs have been barking for it, now they have a Chuckit! Ball Launcher just their size. The Mini Ball Launcher features a scaled down throwing cup that sends the mini balls a-flying. Enjoy an effortless game of fetch because the Chuckit! Does all the work. All play, no slobber, with hands free pick up. For small dogs only. For use with Chuckit compatible mini balls only.