The best parts of a mortar and a grindstone are incorporated into this useful, palm-sized tool. Put in some ingredients, hold it with both hands, rotate forcefully, and voila! The ingredients turn into powder. It makes powdered tea leaves, sesame, dried sardines, walnuts, spices, etc. The unlimited applications include sprinkling the powder over rice and other dishes, dissolving it in liquid to drink, adding to seasonings, and so forth. As the top lid has three types of grates, it is also possible to grate ginger, garlic, wasabi horseradish, etc. This is another secret trick when using SURIUSU!