These rings are easy to digest because they are made with 100% natural duck fillets with white rice. A fun and playful duck treat. Great for small dogs! Ingredients: Duck Breast Rice. Guaranteed Analysis Crude Protein MIN 51.0% Crude Fat MIN 2.2% Crude Fiber MAX 0.25% Crude Ash MAX 3.5% Moisture MAX 18.0% Calories/3.5oz 310. Resealable Bag. Low Fat Low Calories Low Cholesterol High Protein. No Additives No Preservatives No Coloring.