This is a pair of blue Bizen yunomi (teacups) made by a potter. They are blue Bizen, using the Bizen technique, and have a mysterious kiln transformation that is fascinating to look at. Size: Diameter: 7.5 - 7.8 cm Height: 9.7 cm Diameter: 7.8 cm Height: 9.3 cm (approximately) These are approximate measurements. There is a potter's mark. No original box. I do not know the name of the potter. At first glance, they seem understated, but as you look at and touch them, you are drawn in. I think the subdued, aged flavor is excellent. Thank you very much.