Impact-bonded 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 double-riveted 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. Wide flat bottom is ideal for searing. Low sides let air to circulate to keep foods crisp but high enough to contain juices and prevent splattering. Protected by Calphalon's full 10-year warranty.