Dura chew hollow stick dura chew hollow stick stuffable treat toy for dogsmade from durable nylon the dura chew hollow stick with its irresistible bacon flavour discourages destructive chewing and promotes appropriatethe surface of the nylabone becomes rougher creating bristles which help clean teeth and control plaque and tartar build up as well as massaging the gumsstuff it with a treat for added excitementnbspwolf suitable for dogs up to 35 lbssouper suitable for dogs 50 lbs