Heavy gauge aluminum construction ensures even heating and is hard anodized for durability It also makes it dishwasher safe Interior includes 3 layers of nonstick coating 2 layers provide durability and the third layer offers easy release performance The long brushed stainless steel handles are designed to stay cool on the stovetop Pans and covers are also oven safe making it ideal for finishing a gourmet dish Flat wide bottoms heat evenly and provide plenty of room for cooking The sloped sides are designed for easy tossing and rolling The nonstick surface means you can cook healthier using less fat with effortless cleanup Comes with Calphalons full lifetime warranty