Woolf Snacks are specially formulated for dogs of all sizes. Woolf Snacks, once cooked, are packaged without chemical additives, preservatives or colourings. To guarantee the preservation of the packaging, an oxygen absorber is inserted. Zip-closure packaging. Storage: Store in a cool, dry place. Once opened, store in the refrigerator. Consume within 7 days of opening. Ingredients: Duck (77%), cod (20%), starch (2%), glycerine (0.5%).