All Fissler pots and pans feature the CookStar all-stove base that allows for even heat distribution and superior heat storage, and can be used on any type of cook top. The base is composed of 18/10 stainless steel with a 6 millimeter thick aluminum core for optimal heat distribution, diffusion and storage without hot spots. The bases of the pans are slightly concave to ensure it will be perfectly flat while heating that also helps to prevent warping. Fissler offers an unlimited lifetime guarantee that the CookStar base will remain flat on any type of stove. The Protect Steelux Premium frypan is a nonstick pan that is ideal for easy and gentle cooking. The pan features a patented Protectal Plus Interior Coating, the first nonstick coating that is completely PFOA free. The coating is tested for chip-resistance, durability, longevity, evenness, heat distribution, safety, ease of cleaning, and quality of coating after abrasion tests and is the winner of the Stiftung Warentest. The ergonomic handle rests perfectly in your hand for a firm grasp while cooking and stays cool to the touch.