Most "eggshell" pieces are shaped liked cups, with the mouth as small as 0.2 or 0.3 mm. It is generally assumed they were used to store water or wine, or used for religious purposes.
蛋殼陶則大多做成杯狀，杯口可薄到○．二、三公分，一般猜測是用來裝水或酒。更為精緻的，則用作禮器，或為宗教用途。