Non-toxic stainless steel with durable 3-layer construction for long-lasting performance Calphalon Turbo Temp™ Technology heats up to 20% faster* to jump-start your cooking Aluminum core delivers fast, even heating across the entire cooking surface Oven-safe up to 450°F for easy transitions from stovetop to oven Compatible with gas, electric, glass, and induction cooktops for versatile use in any kitchen