My Doberman is a power chewer. She broke off a piece of the strongest Nylabone. She picks the rubber off the ends of Kongs. The Huck is the only toy I've found that she has not been able to destroy. Since I have 3 dogs of my own and foster 2 more, I went back and bought more Hucks. It's strong enough for the power chewer Dobie and pit bull, and the little groove makes it possible for my little terrier to enjoy it, too.