This is a Unikko mug with a larger capacity than a standard mug. I wonder if it holds about 400ml. The darker parts of the gentle beige color are dark green, not black. I thought it would be good for drinking a lot, but I only displayed it and don't remember using it. The color is cute, but I'm selling it because I have too many mugs. I think this color is no longer sold, so I've set the price a bit higher.