Manual Coffee Grinder : Built of High Quality Pine Wood, Ceramic Core & Cast Iron , Hand Grinding Improves Taste, Acidity & Finish. | The hand crank grinder with ceramic grinding core, can be washed easily, no metal smell, avoid raw heat affecting flavor. Pure wood bottom base with drawer collects powder easily. | Easy Manual Operation: This hand-crank style mill requires just a few turns on the handle to grind coffee beans, spices, nuts, herbs or other gourmet ingredients. No batteries or electricity is required. | Fineness Adjustment:The manual coffee bean grinder with built-in polygon adjustor (turn it upward or downward) enables you to precisely control over the powder fineness for any desired brewing method. | Pratical and Useful: Don't bother with messy, complicated grinders. An ideal companion for Coffee Maker, Espresso Maker & Other Home Brewing Systems.Perfect for coffee shop display, as a birthday gift, or simply for grinding coffee beans.