Duck necks are a strong source of glucosamine and chondroitin that is found in the components of cartilage and connective tissue of the duck, it promotes the repair of bones and joints in your dog. They are also a healthy natural dental chew as chewing on the necks will take the tartar and plaque buildup off from your dog’s teeth.
 
Always supervise your dog when chewing.  Please provide plenty of fresh water along with the chew.