Meaning of Hamam dasta in English. How does Mortar (Pestle) look like

Mortar & Pestle is an ancient device that is applied for the main purpose of crushing and grinding the substances into a fine powder or paste. A mortal is a bowl-shaped object made up of ceramic, stone and wood whereas the pestle is cylindrical-shaped object bulkier at the bottom made from the same material as mortar. The main advantages of using mortar & pestle are that the substances do not get warmed up while it is being crushed.