You should have seen my one-year-old lab tear around the yard when I first kicked the Jolly Pet 6-inch Teaser Ball to her. I've never seen her so happy and excited! She grabs it, pushes it around, drops it and looks up at me, and lets me kick it some of the time. She chases it like crazy. It's kind of like a soccer game and good exercise for both of us! She hasn't chewed through the ball yet, and she has eaten all her other toys. The ball also makes noise when it rolls, due to the smaller ball inside. We love this toy. It is her second favorite toy, with Bad Cuz coming in first.