The covers have a unique thermometer to help regulate cooking temperature. That means when you are trying to juggle a dozen kitchen chores while cooking, a simple glance at the thermometer tells you immediately if everything is fine. Better yet, you can stack cook with this cookware. That means you can start cooking on one burner and then stack the pan on top of another pan when it reaches cooking temperature, freeing up a burner.The set includes 1.5qt covered saucepan,2qt covered saucepan, 3.6qt covered sauce pan, 8qt,covered roaster, 11" covered skillet, 3.6qt steamer insert. Thats not all you also get a deep fry basket with removable handle, 8"bowl with plastic lid(also used as a double boiler or dome lid, 9.5" bowl with plastic lid(also used as a double boiler or dome lid, 9.5 insert adapter ring, vegetable grater with removable lifter handle, suction knobs for dome lids and a stainless steel whisk. The set comes with a limited lifetime warranty and is shipped in a gift box.