Duck feet are a great quick chew for medium and large dogs and a longer chew for small dogs, puppies and seniors. They are high in protein and a great natural source of chondroitin, which helps promote joint mobility and agility. Duck Feet provide your dog with a safe, healthy, grain-free treat. Made only of all-natural duck, these single-ingredient chews also promote healthy teeth and gums through the gnawing action they provide.