I have always had nylabones for my pups-and the grown dogs love them also. My dogs like the flexibones-they don't bother with the durabones. If they get pieces off them, I take the pieces and throw them away, or if the nylabone gets too small-but they last along time. I do not get the edible bones, and they love the cow hooves, but I would not leave them alone with them, as they can get pieces off of them also. They have a pile of different sized nylabones, but of course, they always want the SAME ONE, so they run around chasing each other 'cause "hey, Ma, she got the BEST one that I wanted!"