My big dogs are aggressive chewers -- they love these bones. Keeps them occupied and out of trouble. I even give them to my mini-dachshunds. The bones are nearly as big as the dogs and it takes them a LONG time to make even a dent in them. Does wonders for their teeth! Excellent product at much better price than I've found elsewhere.
I have been buying these for my 110 lb puppy for about 3 years and he loves them. He looks forward to getting one every night after dinner. Keeps him occupied and happy. All that I have to say is "show me the chews" and he goes right to the drawer they are in and waits for me. The large 16 count package is a great value.