My Basics-Germany Acrylic Salt and Pepper Mill Set These clear acrylic mills from Europe feature masterfully engineered grinding mechanisms  long considered among the finest available. You can easily adjust the grind from ultrafine to coarse by turning the knob atop each. Made of clear acrylic so you can see contents at a glance. Turn the knurled knob to adjust the grind from ultrafine to coarse. Salt mill's stainless-steel grinding mechanism is engineered to resist corrosion. Pepper mill's case-hardened-steel mechanism cracks peppercorns before grinding for an even grind and rich aroma. Dishwasher safe 5" Tall