Chef's Classic Stainless Steel cookware is made of mirror-polished 18/10 stainless-steel. 3.5-millimeter-thick aluminum disk sandwiched in the base to ensure fast, even heating. Tight-fitting 18/10 stainless steel lids that form a precision seal with drip-free rims. Riveted handles of solid cast stainless-steel. Cool Grip™ stick handles dissipate heat through a V-shaped opening at the pan juncture, and have an opening at the end for hanging. Oven safe to 550 F. Dishwasher-safe. Imported. Limited lifetime warranty. Product Features • Constructed from mirror-polished 18/10 stainless-steel for a classic look and easy cleanup • 4.5-millimeter-thick pure aluminum disk sandwiched in the base to ensure fast, even heating • Pan rim is tapered to make pouring clean and easy • Riveted handles are made of solid cast stainless-steel for ultimate durability • Cool Grip™ stick handle dissipates heat through a V-shaped opening at the pan juncture • Handle has an opening at the end for hanging • Oven safe to 550 F • Freezer safe • Dishwasher-safe