I love the tiny trainers. They are exactly the right size and they do not crumble in my hands. They are the perfect size for using them with my two year old English Cocker, who is in Rally and Obedience class. Quite honestly, I have not opened the mixed bag yet. I was intrigued with the idea that many pieces are from many different food sources, so I figured I would give it a try. I have told several people about your company and I know quite a few who have purchased from you and are really enjoying your products.