This is a set of two mugs from Minoyaki Kakurin Kiln. They are large mugs with an attractive deep blue color. Although they are the same size, there are subtle differences in each part, which is characteristic of pottery. The dimensions measured at home are: Diameter approx. 9.8 x Height 7.8 cm There is a blue dot inside one of the cups. It is the same color as the outside and has been there from the beginning, so it is likely glaze. Please check the photos. It is difficult to see in the photos, but the surface has a fine uneven texture, so the glaze is not uniform, and there are variations in light and dark throughout. This is not dirt but a characteristic of the product, giving it a unique charm. They have been used a few times, but they are used items, so we ask that those who understand this consider purchasing them. - Color: Navy - Material: Pottery Thank you for looking.