I highly recommend the Orbee-Tuff Large bone. I put the name in the internet search engine to buy them. I can't remember who on this site recommended it in one of their replys, but THANKS!!!! It's a rubbery bone toy that neither my Anatolian or Pit mix chews through. I spent so much money on other toys to only throw them out shortly after being chewed down too much. They make these bones in small sizes also. They come in great colors. My Max loves the raspberry sherbert color.