Authentic Kotobuki Japanese Tea Cups - ribbed ceramic stoneware in earthy tones, and a traditional silhouette sans handles for that the reason that the tea is served at the proper temperature for which to hold the cup in your hands. Cups measure 3-3/4" x 3" diameter Nice vintage 90's condition with consistent pre-owned patina; free of chips and cracks. Kotobuki San Francisco, Made in USA.