Barkworthies 6-inch Beef Trachea Natural Dog Chew 3 pack A natural, low-fat, and healthy smoked chew that have great flavor and some crunch. Helps promote healthy teeth and gums. As these are a natural product, size varies from chew to chew. They are typically about six-inches long and 1-inches in diameter. Price is for 3 Beef Tracheas.