This quintessential cookware collection is the result of more than four decades of all-clad ingenuity and artisanship. Copper-Core combines the ideal benefits of copper heat conduction with the cleaning ease of stainless steel. Because this formula is a carefully-guarded all-clad innovation, no other cookware in the world can match the performance standards of its unique bonded design. Copper-Core is the premier all-clad cookware collection, and is the choice of many of the world's elite chefs and discriminating cooks. Pasta dinner made even more simply. A 7-quart stockpot and colander insert let you lift out cooked pasta, or other ingredients, and leave behind the water/broth. Other uses include steaming or blanching vegetables and shellfish.