This pre-seasoned cast iron skillet is ready for use straight out of the box, though re-seasoning is recommended for a smoother, non-stick surface. It comes in various sizes to suit your needs, including 9.6Inch-24.5cm, 7.7Inch-19.5cm, and 6Inch-15.24cm. Cast iron can leach iron into food, which is beneficial for health. While not as smooth as non-stick cookware, it ensures complete drying after cleaning. For maintenance, lightly oil the inside of the pan with your oil of choice while it's still warm, using a thin coat and wiping off any excess with a cloth or paper towel.