Comet mills from William Bounds combine exotic wood, in this case American black walnut, and acrylic. The wood sphere on top of the mill highlights the natural beauty of this durable hard wood., while the clear acrylic body showcases the peppercorns or salt crystals stored inside. The William Bounds three-step adjustment ring allows you to easily choose from fine, medium or coarse grinds. The exclusive stainless steel (corrosion-proof ceramic in the salt mill) milling mechanism is designed to crush rather than grind peppercorns and salt crystals. It features no interlocking parts, so it will not jam or wear out. 7" tall.