Cole & Mason Seville Precision Salt and Pepper Grinder Set, Acrylic, Sea Salt and Peppercorns Refills Included A machine cut carbon steel precision mechanism for pepper and diamond sharpened ceramic for salt creates a smooth and even turn Easily fill the vintage style salt and pepper mills by removing the top Conveniently select between fine or coarse granules by adjusting the knob on top Unique 6 inch tall retro cube design with premium balance and weight Lifetime Guarantee, hand wash with damp cloth, do not submerge