This is one fantastic product! I put it on the ground, my dog sniffed around it and the moment it made a sound, he nabbed it. First I bought the large size, but he would get it stuck in his mouth. So, I went back and bought the smaller ball. Once he grabs it, he does not put it down. He will miss meals, water, playing with the other dogs, snacks, and petting for this ball. I swear it is infused with heroin or something! He is so obsessed with it that we have had to limit his time with it to an hour at a time. He knows exactly where we store it and will stand and cry for it. I have to admit that when he's hyper and barking at everything, we sometimes had him to ball so we can get some peace and quiet.
Also, my family swears it is inhabited by a ghost. It says the most appropriate things at the right times. It's hilarious. If one of the other dogs farts, it just happens to say "Eww, that's gross." When my son walks by, it usually says something appropriate like "Hey, daddy". It's as entertaining for us as it is for him, more so actually. There are 3 of these balls and I've purchased them all and they are all equally entertaining. I have 4 dogs, but the other 3 aren't that interested in them. Besides, I don't think this dog would allow them near the balls. I'm afraid that if I were to put all 3 out, he'd try to get them all in his mouth at the same time! You'll sure get your money's worth with this toy!!