Salt and pepper mill set, with Precision System, 10.5cm, acrylic. The innovative Precision System offers a unique grinding technology that ensures a totally enhanced taste experience. The hardened carbon steel mechanism strips the peppercorns into individual layers while grinding them. The individual flavors within each layer are released and blended together to release an intense flavor. The salt grinder takes advantage of a diamond ceramic mechanism to deliver the ultimate in performance. The spring mechanism can be easily adjusted to produce fine to coarse grits that will please everyone. Lifetime warranty on the mechanism.