This is a Nakao Aluminum Seisakusho Pro King 21cm pot. It's made of aluminum, which is lighter and easier to handle than stainless steel, etc. Nakao Aluminum pots have a different thickness than other pots, resulting in different heat conductivity and heat retention. Once it boils, you can maintain the heat with low heat and gently cook. It has been used quite a bit, so there is considerable wear and tear, but it has been used carefully and polished, so it can still be used. Diameter: 22cm Width including handle: 32cm Height: 14.5cm Height including lid: 19cm #NakaoAluminum #ZwillingHenckels #AluminumPot #MakingDashi #Ramen #Bouillon