They definitely last longer than bully sticks, IMO!
Jackson was never TOO interested in them. He would often just take it from me, walk around whining with it in his mouth, and then maybe chew on it a bit but he always lost interest after not even getting through half of it.
They are hard as a rock, so I can't let him have one for a little while. After his dental surgery, he can't have anything too hard until after Christmas (don't wanna knock that $1300 filling out, LOL) so I won't be buying them anytime soon.