Kyocera Advanced Ceramic Dual Adjustable Spice Mill, Black Adjustable dial: For fine to coarse grinds Rust-proof: The advanced ceramic mechanism is non-reactive & will never rust Consistent performance: The grinding mechanism is made out of Alumina, an advanced ceramic close in hardness to diamond Fresh, flavorful, pure results: Maintains the fresh taste of spices Re-usable container: The acrylic base can be re-used as much as necessary and is dishwasher safe