Cole and Mason 105 Salt and Pepper Mill Set, Beech Wood and Clear Acrylic Made from selected beech wood sourced from sustainable forests Density of beech wood is much tougher and more durable than woods used in most mills Anti-corrosion, clog-free nylon mechansim for grinding salt from fine to coarse Closer grain of beech wood allows sanding to a smoother finish Durable, adjustable stainless steel mechansism for grinding pepper from fine to coarse