This may be the best of all the Mutipet toys! Previously gave great reviews of others, but this one never stops! They bite it,  step on it, sit on it and hide it from each other. It always gives itself away tho with its "OOOOONNNOOOOOO!!!!" I keep 2 around here and have given several to friends. I think it's particularly popular with those of us who remember Mr Bill, but it sure translates to the dogs!