With MineralShield nonstick technology that's 5x more durable* than before, Calphalon Premier Space-Saving Hard-Anodized Nonstick Cookware releases food effortlessly and stacks neatly. (*vs. prior generation of Calphalon Classic) Premier™ Space-Saving Hard-Anodized Nonstick 12-Quart Stock Pot with Lid