The Razor and Clipper Blade Sharpening Hone from Vincent (VT1313). Double sided - 1 side is 500 grit for rough grinding to return edges to original shape. The other side is 800 grit for fine finishing, smoothing and polishing cutting edges. Stone requires no pre soak for use. Lubricate with water for use (not oil). 8" long, 2" wide and 1 1/4" thick.