Achieve optimum heating and cooking temperature using All-Clad's Copper Core sauce pan. The patented Copper Core technology uses a five-ply construction to ensure the ideal amount of heat conductivity and diffusion. The center copper layer is bonded on both sides by aluminum to enhance heat distribution, while reducing weight. Finally, the interior and exterior are bonded with stainless steel to provide the ideal cooking surface with ease of cleaning. These three materials combine together to create a beautiful and functional piece, allowing for maximum durability and ease of use. The piece also features a long, stay-cool handle that is riveted to the side for added durability and strength, and a stylish copper band that encircles the pan for an additional accent.