My dog can chase a ball for hours, but unfortunately the family doesn't last that long. I was originally skeptical about this, but I had seen someone at the park with one and thought I would give it a try. It does take a few times to figure out the ideal launch, but after that this works like a charm. My young children are able to join in the fun now too. The added bonus is how the launcher will retrieve the slimy ball without my having to touch it.