Fletchers' Mill Federal Salt Mill, 4-Inch, Maple Gourmet 4-inch maple stain salt mill, hand crafted in New Vineyard, Maine Patented lock and grind grinding system; variable grinding; from fine to coarse; easily adjust to desired grind Salt mills feature an adjustable nylon crushing system to be used with dry salts only Family owned company, American made products, lifetime guarantee Sustainable wood and energy practices