I bought one of these for my dogs when we lived in California a few years ago. It not only survived their jaws, it moved across the country with us! I was thrilled...but it has since been lost. So, I bought a new one. It hasn't survived as well. It was torn into about 20 pieces within a few hours of the dogs getting it. I was very disappointed. However, I must say that the one we had in CA was the larger version, and this time I bought the smaller one--maybe that has something to do with why the old green one survived while the new blue one was torn to shreds. When I get an extra few bucks again, I'll come back and buy the bigger one.