This is a small teacup, likely for Chinese tea. It was a gift from an acquaintance who enjoys sencha (Japanese green tea), so it may be for sencha. It didn't come with a box, but it appears unused, although I'm not certain, so I've listed it as "like new." "Wakamine?" is written on the bottom. Size: Diameter of the mouth: Approximately 6.7 cm Diameter of the base: Approximately 3.5 cm Height: Approximately 4.6 cm