Cow tracheas are cartilage that is chewy and does not splinter. Naturally high in glucosamine and chondroitin, trachea treats support joint and bone health. Thin fat trimmings add to the flavor without packing on calories. The chewing helps clean plaque on your dog's teeth keeping them clean. The length of each trachea treat is around 9-13 cm. -- About Hoya Barkery: Hoya Barkery are focused on high-protein, nutritious treats your dog will love that will also contribute to a longer healthspan. (Their namesake Hoya, an Olde English Bulldog, is 12 years old and still going strong! 🐶) They use human grade ingredients without artificial preservatives, colors, or flavors. As 100% natural, animal-based products, the treats are easily digestible, help repair cells, improve the immune system, and are overall healthful for dogs of all ages and sizes.