Spcification Grinding Core Ceramic Grinding CoreMaterial PP ABS PS 304 Stainless SteelBean Capacity 12g MAX Powder Capacity 30mlWeight About 160gFeatures The ceramic grinding knob can adjust the coarseness The grinder is compact and easy to carry and can be easily put into the bag without burden The whole body is detachable and easy to clean The bottom adopts a transparent powder bin design which is convenient for observing the powder condition The separate rocker is easy to disassemble and store the sunken grinding bin is not easy to leak out and is convenient for feeding Package included 1x Manual Coffee Grinder