Zollyss Classical Wooden Wood Oak Pepper Spice Salt Corn Mill Grinder Muller (5 Inch, Multicolour) Feature: perfect and ideal to make freshly ground pepper/powder/spice for making a tasty salad or steak. Beautifully designed pepper mill with ceramic grinding mechanism suitable for milling pepper, pickly ash, corn, mustard seed and other small sized spices screw off lid for refilling, operates by manually rotating material: oak shell, stainless steel grinding mechanism 5 inch: height: approx. 5.1inch/13cm inner diameter: approx.1.4inch/3.5cm external diameter: approx.1.9inch/4.8cm instruction: screw up the screwcap at the top of the mill to adjust the thickness of pepper/spice you are going to grind. Screw up the screwcap tightly to make it fine, and vice versa.