Calorie Content (calculated) (ME): 3008 kcal/kg, 150 kcal/piece Natural antler-shaped dog chew. No artificial colors, flavors or preservatives. Natural with added calcium. No corn, wheat or soy. Instinctually satisfying. Naturally edible. Rawhide free. Prime Bones is a safe, naturally edible treat made to satisfy your dog's instinctual love of chewing. Long-lasting chew. Rawhide & plastic free how2recycle.info. purina.com. Produced in USA facilities. Made in Dunkirk, NY. Printed in USA.