"I have a 7 month old labradoodle pup -- about 50 lbs -- who is a chewing machine. We're talking 10 dollar rawhide bones are gone within hours. I had heard about these bully sticks -- that they were really durable. Let me tell ya, if you have a chewer like mine, don't bother. We got a $13 bully stick that was about three feet long; in a half hour there was about 6 inches left, and within 45 mins my dog was wanting another. He loved it, but my hubby and I -- to say the least -- were dismayed. My dog's bag of food was almost the same price! yikes. We'll be trying something else."