Chef'n has given the Dual grinder double the innovations, one-handed grinding and pepper and salt in the same grinder. How about that? The adustable grinding mechanism is operated by squeezing the rabbit's-ears handles with one hand, really handy when you're cooking and stirring. Simply rotating the upper part of the grinder makes the switch from pepper to salt and back again. The little oval window in the upper part of the grinder displays a P or an S, so you know what's going to come out and the grinder employs a zinc mechanism for grinding pepper and a corrosion-proof ceramic rasp for grinding salt. The Dual Grinder comes filled with both peppercorns and salt crystals.