Use for sharpening shears and other cutting tools with straight blades. Our combination water stone has a 280 grit gray bauxite stone on one side and a 1500 grit white aluminum stone on the other. The coarser 280 grit stone can remove very small nicks and burrs. Hone blades first with the coarser stone, then with the fine grit stone to get the cutting edges back to their original sharpness. Boxed and supplied with a flexible plastic holder to minimize slipping. 2" x 6" x 1-1/8".