We source our Redbarn Bully Sticks from free-range, grass-fed cattle in South America. After forming lasting relationships with some of the most reputable cattle ranchers, our co-founders decided to purchase a manufacturing plant in Paraguay. This decision not only ensured our premium Bully items were sourced from the best but could meet our same U.S. standards of manufacturing while maintaining an affordable price point for our pet parents. Today, Bully Sticks are our most popular product ? and for good reason These all-natural, highly digestible chews are 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 dogs 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. Boredom busting. Dental Hygine. Muscle Development.