The materials used in a pot are important! This is an electric pot that is also useful for those who are concerned about electromagnetic waves. It's an excellent electric pot that warms oil and maintains a constant temperature. It can also be used as a substitute for oven cooking. I have two shallow pots, but I haven't used them and have stored them for a long time. It seems there are recipes for oden, curry, stew, rice, and even chiffon cake and bread. Royal Queen is no longer sold, but parts can still be purchased from shops and online. ◆Product Royal Queen 5-quart Eleskey Electric Pot, Two-Handed Pot ◆Size Inner diameter: 22.4cm Height: 12.6cm *Please forgive any slight errors as this is amateur measurement. There is no box. It will be packed and shipped using recycled packing materials.