Heavy-duty Metal 4" Fine to Coarse Adjustable Pepper Mill Grinder Heavy-duty Metal 4" Fine To Coarse Adjustable Pepper mill Grinder Product Features . 4" tall x 2 diameter . Superior tempered steel . easy to refill . Adjustable from fine grind to a coarsely crushed cracked pepper This heavy duty, all metal peppermill is adjustable from fine grind to a coarsely crushed cracked pepper. It features a superior tempered steel grinding mechanism and is easily refilled.