Duck Feet: a natural tooth brush that also provides your dogs with a source of glucosamine, chondroitin, and calcium
Trachea: a natural tooth brush that is also high in protein, low in fat, and naturally high in glucosamine and chondroitin
Pig Ear Drum: a natural tooth brush, yet it contains a good amount of fat
Lung: a good source of protein, iron, zinc, selenium, and vitamin B12
Fish Skin: great source of omega fatty acids, more specifically the omega-3's
