A pure white porcelain inside pouring pitcher. A great complement to a gaiwan or yixing tea pot. The white glaze really shows off the color of the tea liquor. Also goes well with our tasting cups in a gong fu style tea tasting.It is call "Tea Ocean" in Chinese gong fu tea, it is a very important pieces for making gong fu tea. both can use it for Yixing tea set or Gaiwan tea set.