Natural bone filled with tasty filling! Made with real peanut butter. Dog treats. Love them enough to give them the best stuff. Tasty filling! Long lasting dog chew. Natural bones are filled with tasty fillings for hours of long lasting enjoyment. Filled bones make excellent treats for dogs of all ages and are ideal for dogs who suffer from separation anxiety, for dogs traveling long distances in the car or for puppies simply feeling the need to chew! www.redbarninc. Facebook. Twitter. Instagram. Calorie Content: ME (calculated) 1223 kcal/kg, 278 kcal per piece. Made in USA.