Lansky Sharpeners 6in. Combo Stone Fine / Coarse Light/Dark Grey. This convenient knife sharpening stone can handle a multitude of sharpening tools and lets you keep your blades in shape with just one tool. The Lansky ComboStone Sharpener is great for sharpening pocket knives hunting and fishing knives utility knife blades cutting tools for gardening and woodworking and for maintaining the cutting edges on industrial tools. Dark Grey - Coarse Side - 100 grit Light Grey - Medium Side - 240 grit Specifications for Lansky Dual Grit ComboStone - 2-sided Knife Sharpener: Manufacturer: Lansky Sharpeners Blade Material: Stone Features of Lansky ComboStone 2" x 6" Sharpening Stone: Two grits in a single stone Course and fine sharpening Package Contents: Lansky Combo Stone Knife Sharpeners Lansky Sharpeners LCB6FC: 6in. Combo Stone Fine / Coarse LT/DK Grey