Can't decide which ball would be perfect for you? We take the burden off your shoulders, you can get the dogs' favorite balls in one package! Chuckit! Fetch Medley Balls contains 3 balls and meets the toy needs of all ever-moving, lively dogs. Chuckit! The Whistler Ball: Due to the holes on the ball, it emits a whistling sound during flight, so your dog will be even more excited and active during fetch play. The whistling sound will surely increase the alertness of your adventurous dog. It's a perfect choice while walking, even at the waterside, because the ball floats on the water. Chuckit! Max Glow Ball: The toy made of luminescent material is neither chemically nor biologically harmful to your pet. It charges in 5 minutes in natural light, but if you only have your phone at hand, you can charge it in a few seconds with a flashlight, so the ball will glow green in the dark for 20-30 minutes. Chuckit Rebounce Dog Ball: Think about your environment while playing, this ball is made from natural recycled rubber. It bounces big, encouraging your excited dog to chase the ball during a self-deprecating game. All three balls can be combined with Chuckit! ball launchers. Always pay attention to your dog while playing, do not leave it unattended with the toy to avoid injuries!