I bought this for a Rottie with a high ball drive. He loved it on sight. The bright color really grabbed his attention. The shape made it a little easier to take from him when he didn't want to let go. I threw his old ball for him and he sniffed and walked away looking for this one. He squeaked so much the first day the squeaker broke, but it hasn't slowed down him wanting to play with it. And it's put up to his jaws!