Why choose a salt mill from Zassenhaus? The original Zassenhaus grinding mechanism, made from German high-tech ceramics, offers several advantages thanks to its patented construction: harder than steel, non-wearing and non-corroding 6 different adjustment from powder fine to coarse grinding the coarseness setting is maintained even after refilling 25year manufacturers warranty on the mechanism To use the mill, just turn the top part clockwise. Coarseness can be adjusted using the crossbar on the bottom of the mill. It can be easily filled by removing the top. The mill is made from beechwood. It is 18cm/7in high with a diameter of 5.8cm/2.3in.