The Justice Cup, or Gong Dao Bei, is an open, spouted vessel used for decanting tea into from a gaiwan or teapot. Its purpose is to act as a reservoir to homogenize the tea before it is served and allow the server to halt the steeping process when the tea is properly steeped. These handmade Justice Cups come from Liang Tu Studio in Xishuangbanna, and are made of Dai clay in the Dai ethnic pottery tradition. They have a volume of 150-200ml. These pieces are wood-fired.