Homlly Multi function Spice Coffee Grain Grinder MachineMulti functional grinder, Great for cereal, beans, peanut, pepper, seasoning or even chinese herbs. Four bladed food grade stainless steel blade allow fast and uniform grinding to maintain original rich aroma and oil of the food. ie. coffee bean. Works great to control your coffee bean from coarse to fine in seconds. Simply press the ON OFF button to begin grinding and release to stop. With transparent cover, you can observe the grindering process to