My dog really enjoyed this product. The bone was approx. 4" long,tapered from 2" at its widest end and just over 1" at its other end. The filling packed the entire centre of the bone up to each end and had a fresh minty smell. The outer was pretty tough giving my dog plenty of chewing potential which helped clean his teeth (after he'd first licked out a lot of the filling!). Just one word of caution, my 40kg dog managed to split the hard bone into 2 identical halves. Whether or not he had just managed to bite on a weakened section, I don't know, but I would suggest that you don't leave your dog unsupervised with this, I threw away the 2 halves after it had split into 2 just in case it became a choking hazard. However, there were more positives than negatives and I have ordered more for my dog.