I'm selling this because I don't use it. It's about 20cm, and I think it's good for making 1-2 servings. Size (approx.) Diameter: 20cm Lid height: 10cm Height with lid on: 13cm I haven't used it much, so I think it's clean, but there are some scratches from use, so please check the photos for the condition. There are traces of overflow on the bottom. The black inner part is not noticeable when wet, but when dry, there are streaks (it may be a matte porcelain material). There are no cracks. There are no problems with use. There is no box or instruction manual.