Derwent is Cole & Mason's best selling style around the world. The handsome copper finish will add a flash of rustic style to your kitchen. Cole & Mason's award-winning Gourmet Precision mills feature a hardened carbon steel mechanism for pepper, and a diamond sharp ceramic mechanism for salt. The hardened carbon steel mechanism for pepper does not crush peppercorns, but strips them to consistently release maximum flavour with each turn. It also cuts through the hardest of salts, including rock salt, to deliver your favourite salt with each grind. To change the grind setting, simply twist the stainless steel collar on the salt and pepper mills to select your desired salt grind setting from 3 pre-selected settings; and pepper grind setting from 6 pre-selected settings. To refill, simply pull off the cap. To maximise the life of your mills, ALWAYS grind clockwise. Grinding anti-clockwise is not effective, and grinding back and forth will damage the mechanism. Gourmet Precision mills have a lifetime guarantee on the grinding mechanism.