I bought this for a neighbor's black lab. To test it I dropped it on my hard kitchen floor. It came apart and a few small pieces broke off from the inside. I put it back together and it still worked. I am returning it because I am afraid it might come apart while the dog plays with it and she might choke on the parts. I am really disappointed because it looks like a fun toy. If you make one with a more secure seal I would buy it again.