Nylabone DuraChew S Shape Bacon Wolf size is a gum massaging chew. Durable nylon dog "bone" for powerful chewers. Guaranteed to satisfy natural canine urge to chew Massage nubs exercise your dog's gums and jaws. Your dog's destructive chewing behavior may be due to boredom. Challenge your dog with a Nylabone Durachew for an acceptable outlet for natural chewing behavior. Determined and powerful chewers will be satisfied as they focus their energy on this super tough nylon "bone." Massage nubs stimulate and exercise gums and jaws while varied textures increase sensory information. Discourage destructive chewing, fight boredom, and help clean teeth with the doggy chew toy that does more.