High thermal efficiency Reduced cooking time Waterless cooking Cooking with less oil - Material: Stainless steel - Type: Saucepan - With lid: Yes Outer diameter: 28.5 cm Depth: 5.5 cm Model No. 5511 Purchased several years ago at Ginza Mitsukoshi. Original price was around 22,000 yen. I am selling it because I haven't used it much. Thank you for looking.