Giving your dog non-edible bones also massages their gums and provides scraping action on their teeth; infused with human-grade peanut butter flavoring, allergen free; Tiny flavor cells are molded into both sides of the Flavorit? bone so you can fill it with peanut butter, cheese, cream cheese etc.! Non-toxic, non-allergenic, FDA-compliant; No colorants, no flavorings, no additives