Powerful chompers have finally met their match with the Nylabone DuraChew Rawhide Alternative Beef Flavor Knot Bone .Designed to hold up to tough chewers, this chew toy gives bored dogs something to sink their teeth into, while the unique texture is great for dental health—offering two convenient uses in one tasty package. The savory beef flavor last as long as the toy will, and the satisfying texture helps to clean their teeth and freshen their breath as they gnaw away.