All-Clad E7959064 Hard Anodized Aluminum Scratch Resistant Nonstick Anti-Warp Base Combo Grill / Griddle Specialty 13 by 20-Inch Cookware Pan, 20-Inch, Black Family-size, 20-by-13-inch, nonstick pan for stovetop cooking Stainless-steel interior; hard-anodized aluminum exterior; aluminum core Layer of scratch-resistant, professional-grade nonstick bonded to interior Stainless-steel, stay-cool handles riveted for strength Lifetime warranty against defects