My Shih Tzu is 1 1/2 years old and has a great need to chew. Even those these are on the large size for her - she loves them and chews on them for a week or more. I feel good about them because they are healthy with no artificial anything.
My dog went crazy for Merrick's bully sticks, buffalo flossies, wizzlers, and wishbone, but was sort of lukewarm about the mootube. He kind of tosses it around but doesn't have a lot of interest. He goes the most crazy for Texas Taffy. He's kind of picky about treats though, won't eat soft treats like pupperoni. Anyway, I'm ordering more Texas Taffy, wizzlers, flossies and wishbones but won't be getting the mootube again.