Swiss Diamond cookware features a patented nonstick cooking surface reinforced with real diamond crystals. This unique coating makes for effortless food preparation and clean-up. If treated properly, the surface is extremely long-lasting - it will not peel, crack or blister. Plus, the product is completely free of potentially-harmful PFOA chemicals (certified by the Danish Testing Institute), providing additional ease of mind to your family. The cookware's pressure-cast aluminum construction provides for uniform heat distribution with no hot spots or warping - even if the pan is placed under cold running water right off the stove. Each piece has a perfectly flat base for use on any ceramic, gas or electric cooktop (induction series also available.) The ergonomically-designed handles are well balanced and temperature safe up to 500°F (260°C), allowing you to finish cooking in the oven.