I love that my dog can rip the swirly strip off the outside of the bully stick and that she can also shred up the casing. This bully-stick was a great intro chew for her, and she had fun figuring out how it worked, but now that she has learned how to navigate the strips and crush up the sponge-like pizzle inside, she can devour the whole thing within 10 mins. If your dog hasn't had bully chews before, this is a great introduction. The first 10 or so kept her occupied and made her mind work. As for us, they aren't sufficient anymore. We've gotta move a step up to something a little harder and more challenging to slow down the consumption speed. She eats the whole thing, so perhaps a calorie count could be helpful for me to know how much of a problem that is as she's only about 15 pounds.