It's a really soft rubber toy that makes this god-awful squeaking noise that Psyche ADORES. You can chuck it like a ball and all, and it's awesome. It has become the only thing Psyche really drives for in agility. Weaves are faster, contacts are better, better focus, all for her "chichen". I had two, one got ate (Morrie got it, somehow, and ate it!), now I'm down to one again, and I need a back up.