Our Whipped Cast Iron Seasoning Butter contains a unique formulation of premium ingredients designed to easily create a natural, easy-release and non-stick, surface as well as prevent your pan from rusting. Available in 4 ounce jars. Larger sizes available on request and subject to pricing/availability. Used in conjunction with our Cast Iron Scrub Pre-seasoning and Cast Iron Seasoning Oil it is a really nice way of keeping your cast iron looking, and cooking, good for years to come. You can also get all these items (plus our Pan Scraper) in a kit. Whipped Cast Iron Seasoning Butter Ingredients: Soybean Oil, Hydrogenated Palm Oil, Avocado Oil, Flaxseed Oil, Mono And Diglycerides, TBHQ And Citric Acid (Antioxidants).