Tradition 13 inch Skillet - Vacuum-pressure cast aluminum is superior to stamped in both shape and thickness - Tradition is guaranteed never to warp - The 3-layer nonstick interior and 2-layer nonstick exterior surfaces protect foods from sticking and burning - Traditon is exceptionally easy to clean and facilitates fat-free cooking - Wooden handles allow safe and easy transporting of pans, and stay cool on the stovetop so no potholders are necessary - The nonstick surface is designed to never chip, crack, blister, bubble or peel.