Great product! My 80 pound pitbull loves this Kong toy. I stuff a large size MilkBone in it and smear some peanut butter inside or dunk it in chicken stock and give to him in his crate after dinner. Takes him awhile to work the MilkBone out.  He also loves to just carry it around, chewing on it and playing "keep away" with me.  So far, no damage has been done to it and he's had it about 2-3 weeks. He also loves his smaller Extreme Kong, original shape. In general, I don't think you can go wrong buying a Kong!  :)