I like the Dokkens and the dogs like them. The Avery's are like blown up footballs at first I thought they would be great but found out in less than a year they were not going to last. I have had Dokkens for years the avery's I bought lasted a little while then cracked and the dogs really didn't like them. My Dokkens I use when I can't use birds. Young dogs and puppies love the Dokkens for some reason. It seems expensive but I use Dokken of different size and have had some over ten years and trained a bunch of dogs and they still look pretty good. I have broke a head on a Dokken when it landed on a rock but normal use not a problem.