Made of high quality stainless steel, glass and ceramic grinders, will not rust or be easily scratched. And the bottle is made of glass and does not absorb any taste. It can also tell you how much spice is left in the glass. 2.Adjustable grinding settings-adjustable from coarse to fine, you only need to rotate the grinder to ensure maximum flavor release. Important note: Do not overtighten, otherwise the grinding mechanism may be damaged during rotation. 3.Simple and convenient-The grinder is equipped with a precision stainless steel cover, which can keep the original flavor of the fragrance for a long time after it is completely sealed. Prevent dust and water from entering; convenient spice replenishment, just unscrew the top of the grinder and pour in fresh new spice. 4.Perfect experience for those cooking in the kitchen at home or grilling outdoors or those who add salt and pepper to your favorite meals; can grind almost all small particles: pepper, sesame, cloves, small Fennel,