Features:Thin but elegant, smooth surface makes it different from ordinary porcelain.It's conform to the bone China national standard, environmentally friendly.Different patterns for you to choose from, royal and classic.If you slightly tap it, you can get very crisp sound. Isn't it enjoyment of art?Specification:Material:bone chinaSurface technology: overglazePackage Content:1 set x Coffee Cup,Warm tips:* Slight flaw may exist in single product as they are handicraft products. Don't worry; it won't influence quality at all.* You'd better wash it by hand as it's quite delicate, NOT for microwave use* If received damage,please feel free to contact usNote: Size manual measurement, the slightest error, for reference only