The adjustable grinding dial with over 18 clicks ensures you have 100% precision control over the roughness of your Pour Over, Drip, Chemex, Cold Brew, French Press, Percolator, Aeropress, Turkish, Espresso, Keuring K Cup, Herb or Spice grind. Easy to fill: user-friendly designed lids make you fill the coffee beans in the grinder withRemove the lid... And it is easy to take Acrylic Bottom Chamber Coffee Powder No batteries, power or long plastic cables needed to operate your portable compact coffee grinder, allowing you to travel and brew freshly roasted ground coffee beans at your next camping, hiking, backpacking, or outdoor trip. NEW HIGH HARDNESS CERAMIC MECHANISM: The ceramic grinder is non-corrosive and does not absorb flavors, while a plastic knob on top of each salt and pepper mill allows you to easily adjust from fine to coarse grinding.