SUPER GOOD PETS RAW BEEF KNUCKLE - 3PKRaw, Individually Frozen Beef knuckle bones are great for dogs who love to keep themselves busy chewing things! Theyre covered with tasty bits of meat and connective tissue. With more nutrition than your shoes and couch combined, these beef bones contain nutrients like calcium, iron, zinc, protein, and healthy fats just to name a few. Skip the artificial chews and give your dog a natural treat!