Made for every dog of every size, BarkBone? llong-lasting nylon chews are non-edible, mess-free dog chews made to provide aggressive chewers with hours of yummy, licking fun. Uniquely manufactured for a realistic look, feel, and taste. Our BarkBone Natural Instincts Stick has a natural look and texture for easy pickup and plenty of nubs and knots to chew. Allergen-free peanut butter flavor and natural grain ingredients are infused to the core and are released as the dog chews. Will satisfy even the toughest chewers. Available in sizes, Small, Medium, and X-Large. Our chews are non-toxic and non-allergenic. BarkBone is proudly made in the USA.