Contains: Chicken Gizzards Your choice between a 2oz or 4oz size. 4oz pack contain approximately 1.5 pounds of Chicken Gizzards (pre dried weight) Perfectly sized for training treats! The purpose of Gizzards is to constantly grind up the food consumed by the chicken in the place of actual teeth, transforming this organ into a tough and lean muscle For such a small organ, chicken gizzards are high in protein, cartilage, and contains iron, zinc, minerals, and vitamins C, E, B, and B12. They are also high in Glucosamine, which is beneficial to your pet&';s cartilage and joints and is often used as a treatment for arthritis That all said, it is on the high side if cholesterol, so make sure you do not exceed 20% of the daily diet here! Best Suited For: Dogs of all sizes! Storage Instructions - No need for a freezer or fridge, this item does just fine in a cool and dry space!