The all-natural, highly digestible Redbarn Bully Stick Dog Chew Treat is made from a single ingredient, beef pizzle (a muscle) and slow-roasted in their own juices for maximum flavor. But they do more than pack a powerful punch of flavor. They work overtime to support your dog's muscle development, while the natural act of chewing helps support their dental health by gently massaging their gums and scraping away plaque and tartar buildup. The treat is ideal for pets of all life stages. This includes Extra-Small, Small, Medium, Large and Extra-Large breeds.