I believe this is ink used for Chinese calligraphy and painting. My grandfather gave it to me as a souvenir many decades ago. Diameter: 13.5 cm Width: 5.5 cm Thickness: 1.3 cm Weight: 112g Measurements are approximate, so there may be some error. It is a new, unused item, but the box is old and shows its age. Please check the photos. Please understand that this item has been stored at home for a long time.