Made of beautiful solid marble, each piece has a unique design and color. Mortar measures 3.5-inches tall, has a 4.5-inch diameter bowl, with a 5.5-inch long pestle. Grind herbs, spices, grains or pills in our beautiful grey marble mortar and pestle. Easy to make healthy spice rubs and pastes with this mortar and pestle, the grinding end of pestle and interior of mortar are left unpolished for optimum friction from the rough surface. Clean with a damp cloth.