Here are some other great ideas for those long chews these ideas came from 2BullyMama
Marrow bones which you can get these from you local grocery store or butcher. They are sometimes over 8 or 9 inches long so I just ask for them to be cut into 4 or 5 inches; this way all the marrow is reachable for the pup.
These are frozen and raw (front right), do not cook them. Just give right from the freezer, they last for hours and are also great for teething as the cold help with the pain. You can give it to them for as long as you want.
Once the marrow is done, you can stuff with yogurt, peanut butter (front center) or cream cheese and freeze. I also leave them empty (back left) for a few days after peanut butter and let them just chew on the empty bone.
It keeps them busy for hours and when done... they are exhausted and sleep for the next few hours. Very happy bully!