From the official website: Featuring T-fal's highest-level durability ever, the Titanium Unlimited coating ensures that food won't stick, even after extended use. The IH disc on the bottom has been enlarged for more efficient and even heat distribution. Includes the "Thermo-Spot" indicator to show the optimal time to add ingredients. Compatible with all heat sources, including IH (induction cooktops) and gas stoves. Metal spatulas can be used. (Please use spatulas with rounded edges.) Lineup: ＜Set 10＞ Frypan 22/26cm Wok 26cm Saucepan 16/20cm Butterfly Glass Lid 16/20cm Seal Lid 16/20cm Removable Handle (Fig/Brown) 1