Made for every dog of every size, BarkBone long-lasting nylon chews are uniquely manufactured for a realistic look, feel, and taste. Our BarkBone Natural Instincts Stick has a natural look and texture for easy pick up and plenty of nubs and knots to chew. Allergen-free peanut butter flavor and natural grain ingredients are infused to the core and is released as your dog chews to satisfy even the toughest chewers. Available in 3 sizes, X-Large, Medium, and Small. BarkBone is proudly made in the USA. Made for every dog of every size. Uniquely manufactured for a realistic look, feel, and taste. Natural look and texture for easy pick up and plenty of nubs and knots to chew. Allergen-free peanut butter flavor and natural grain ingredients are infused to the core and is released as your dog chews. Satisfie even the toughest chewers. Proudly made in the USA.