Whole buffalo trachea or gullet treats are hollow chews made from the windpipe of a buffalo. Their shape allows them to be filled with a variety of other products, such as your dog's regular food, making them even longer lasting.
The cartilage that lines the outside of the trachea is rich in glucosamine and chondroitin.
Due to their size, these tracheas are best suited to med/large/giant dogs.