Zero Hide collagen Duck Bones  are made to the highest standard with fully traceable natural ingredients.
Collogen is great for skin and coat.
Chewing has a calming effect on dogs whilst promoting clean teeth and healthy gums.
Composition
Collagen (60%), Duck (26%), Vegetable Glycerine, Peanut Protein Powder
Analytical Constituents
Crude Protein  69.00% , Crude Fat  3.00%,  Crude Fibre  2.00%, Crude Ash  4.50%, Moisture  16.00%