The Lansky Dual Grit Combo Sharpening Stone offers the convenience of two grits in one stone. It is great for sharpening pocket knives, hunting and fishing knives, utility knife blades, cutting tools for gardening, woodworking, and industrial cutting tool edge maintenance. (Dark Grey) Coarse Side - 120 grit (Light Grey) Medium Side - 600 grit Size: 2" x 6" USA