EZE-LAP 22F 1 by 3 Fine Diamond Stone on a Walnut Pedestal Conveniently-sized fine grit stone is housed in a solid walnut block Millions of industrial diamonds provide fast and efficient honing action This stone can be used dry, or with water or oil lubricants Fine diamond grit; 600 grit; our best general purpose grit 1-Inch by 3-Inch stone mounted on a walnut pedestal Longest lasting and most durable sharpening tools available Quick easy way to sharpen both cutlery and tools, the "professionals" choice Made in USA