Calphalon 12 Piece Easy System Nonstick Set, Large, Black Heavy-gauge aluminum construction ensures even heating and is hard-anodized for durability Most pans feature etched fill lines, pour spouts, and glass covered with silicone straining rims Etched fill and capacity lines let you measure ingredients without extra cups or spoons and help prevent boil-overs Spouts make it easy to pour liquids neatly and evenly from either side of pots and pans; Strainer holes in rims let you drain water from pasta or vegetables without using and cleaning a colander Protected by a Full Lifetime Warranty