Pork Skin Twists - Chicken Liver Filled. Made with Real Chicken. Satisfies Your Dog s Need to Chew. Treated with Irradiation for your Safety Our Pork Skin Twists have a naturally delicious flavor dogs love. They satisfy the need to chew without making a mess and clean your pet s teeth at the same time. They are made with real chicken and are healthy and delicious. A treat your pet is sure to enjoy. Guaranteed Analysis: Crude Protein.....min. 50.0% Crude Fat.....min. 5.5% Crude Fiber.....max. 7.0% Moi.