Seto-yaki Togetsu Kiln, made by Fumiyasu Sugiura, a mug featuring origami cranes. The surface is smooth, and the bumps are called Yuzu-kuro. Yuzu-kuro is a black, yuzu-skinned pottery characterized by fine irregularities. It is also known as Seto-kuro. Among these, I haven't seen many mugs like this for sale, so if you're looking for one, please consider it. m(_ _)m - Color: Black - Design: Origami crane - Size: Mouth diameter approx. Φ8.5cm x Width approx. 13.5cm (including handle) x Height approx. 9.5cm Thank you for viewing. ※Request※ Due to home storage, there are overall damages such as scratches, scuffs, and discoloration. Also, please refrain from purchasing if you are looking for a perfect item or are very sensitive to condition. In addition, to prevent product substitution, returns are not accepted, so please understand.