NATURAL WOOD MATERIAL This manual salt and pepper grinder set is made of natural acacia wood, stainless steel and ceramic grinding mechanism,no plastic material,non-corrosive, you can use safely.This natural wooden salt and pepper mill is a elegant and fancy decoration in kitchen. Salt and pepper grinder prices. Inexpensive Basic glass and stainless steel sets start at around $10 to $20. These usually feature ceramic grinding burrs for both salt and pepper. Mid-range Mid-range options cost about $20 to $40.