Calorie Content (calculated) (ME): 3008 kcal/kg, 218 kcal/piece. Natural antler-shaped dog chew. No artificial flavors. No artificial colors or preservatives. No corn, wheat or soy. New. Instinctually satisfying. Naturally edible. Natural with added calcium. Limited ingredient formula. Prime Bones is a safe, naturally edible treat made to satisfy your dog's instinctual love of chewing. Long-lasting chew. Rawhide & plastic free purina.com. Printed in USA. Produced in USA facilities. Made in Dunkirk, NY.