Joint formula. Calorie Content: ME (Calculated) 2918 kcal/kg; 233 kcal per Piece. Simply the best. Premium Dog Chew. Since 1996, we’ve been making dog chews with the safety and health of your pet in mind. Redbarn’s innovative Chew-A-Bulls Rings contain natural ingredients to support your dog’s joint health and maintain a healthy smile by gently scraping harmful plaque from their teeth. Try some today! www.redbarninc.com. Facebook. Twitter. Instagram. 800-775-3849. Made in USA.