Zwilling's Peak cookware lets you sear like a pro with the ease of nonstick performance. Tri-ply stainless steel construction gives the pots and pans in the ten-piece set superior heat retention, while titanium-refinforced exteriors offer enhanced durability and resistance to corrosion. The cooking surface features a nonstick coating that leaves a top layer of stainless steel exposed in a pattern that maximizes surface contact for top-notch searing, browning and caramelization. Tempered glass lids have a flat design that encourage circulation of heat and moisture.