ok, so I have a golden retriever puppy (ok she'll be one on the 20th), and she goes thru bones like they are paper, so we thought we should get her larger bones... So that is what we did. We got her a beef knuckle. It smells bad, but she hasn't gone thru it yet. There is still 90% of the knuckle left. So. Hope she can keep this one longer than a few days! More hopefully tomorrow!