Stainless Steel + Ceramic】Equipped with sturdy ceramic grinder mechanism with stainless steel housing, ergonomic wooden handle. 【Adjustable Fine to Coarse】Grit thickness can be adjusted by turning the nut on the top to set your preferred grind size. Widely Used】Can be used to grind coffee and vanilla, nutmeg, salt, pepper and other spices. 【Portable Coffee Grinder】No batteries or electricity are required to operate this portable grinder, allowing you to enjoy freshly ground coffee anywhere.【Manual Design】Provides much more enjoyment in brewing coffee and ensures more aromatic coffee as the beans do not heat up during the grinding process.