Borosilicate Round Glass Pot - 290cc. Manufactured with high-quality borosilicate glass, the pot allows you to observe the leaves as they open and to gain better understanding of the leaf-water interaction within the pot. The filter is built into the glass pot body, which is ideal for any size leaf. Further, this setup allows one to brew different classes of tea in one pot because the oils will not stick to the glass as they do in clay or stoneware. Included are four elegant and delicate "tulip" porcelain cups, ideal for gong-fu tea.This is a great gift for someone starting out on their tea journey.