As the days are getting shorter, dogs still need their exercise, so Canine Hardware has introduced the Chuckit. Ball Launcher-compatible Max Glow Ball. Simply hold under a light source for a few minutes and this rugged ball will glow for hours. No more losing Fidoâ€™s favorite toy when playing fetch in the early morning or late evening darkness. This ball is safe and non-toxic and made of a synthetic rubber. Use Medium Max Glow Balls with all Medium Chuckit. Ball Launchers.