Kihappy Kitchen Grinding Pills Spice Grinder Natural Marble Mortar and Pestle, Black, 3.54" x 4.13" Perfect for spices, herbs, tough foods, grains, teas, garlics, and gingers. The grinder is not limited to just food it is but also usable for supplements and pills. Wonderful size for grinding and crushing herbs and spices All pieces constructed of beautiful black marble with grey accents. Great gift for Christmas, a birthday, holiday gift, or a simple just because gift. To clean, wipe with a damp cloth