Awww, thanks for posting the pics. They're awesome! Kozmo is one of my favorite bullies.
I just measured the bone and it's approx. 5/8" thick although most of the bones seem to be 1/2".
After he strips it, I wash it and use it like most people use a kong. I stuff it with peanut butter.
Wow! I can't believe your dog chews these up.