This Japanese combination stone offers 2 grits. The 250 grit coarse side is used to quickly refurbish a really dull or badly nicked tool. The medium 1000 grit side will remove coarse scratches and prepare the tool for final polishing and honing. KING Waterstones are recognized for their quality and affordability. Stone size: 8" x 2" x 1". Soak in water and keep wet while in use.