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 Fido’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.