The Harmony Plus frying pan is a thicker gauge pan featuring new technology developed by Tefal including an Anti-Warp base designed to prevent that "wobble effect" that some frying pans can develop over time and and their new Resistium Non-Stick Coating for a highly resistant non-stick performance. The Harmony also features Tefal's unique Thermospot technology which lets you know when the pan has reached it's perfect cooking temperature and non-stick outer for easy cleaning.