My GSD had to be rushed to the emergency vet clinic after involuntarily swallowing one of these balls. He had been sort of holding it in his mouth, chomping on it occasionally, when I heard a wheeze. It had got stuck down the back of his throat. He would have suffocated if the two holes hadn't been lined up to allow him to breath through the ball. The emergency vets had to sedate him to extract the ball.

The voice is not very erratThe best way I've found to enjoy this ball is to throw it low to the ground, and with a spin. Great for my Shiba Inu who loves to chase things

Make no mistake, this is a, tough, very good quality product and the Dogs seem to like it, however, on grass this flies and bounces as a normal ball and other Canine owners have even suggested that it is even flies on a truer line, it also does not fit easily into my Chuckit launcher I have tried it on a hard surface but still no particular deviation in direction. Green was probably not a great choice of colour for an outdoor dog toy. In summary, I will not be buying any more but the dogs still play with the ones I have.... mainly to chew on. Nonetheless, the object of the ball is to entertain your doggy companion which it.does.