ImpactBonded Aluminum Bases Provide Fast Even Heating Safe For The Stove Oven Broiler And Dishwasher Long Ergonomic Handles Provide A Secure Grip Even With Full Heavy Pans Stay Cool Even When Pan Is Hot And Are DoubleRiveted By Hand Fill Lines Make Measuring Easy And Covers Have Straining Holes That Line Up With Pour Spouts To Drain Liquids Without Having To Use A Separate Colander High Sides And Narrow Opening Help Minimize Evaporation During The Slow Process Of Making Stocks And Soups HeavyGauge Bottom Provides Even Heating And Is Sloped For Easy Stirring Protected By CalphalonS Full 10Year