Arkansas sharpening stones have been used for centuries for their unique sharpening properties. They are made from pure Novaculite rock which is the rarest and finest abrasive stone in existence. Found in one small region of Arkansas, this stone will give the sharpest edges and points your knives have ever known. This 10" trihone includes fine, medium and coarse grit Arkansas stones, set in a rotating wood block with a 23 degree sharpening guide. Honing oil is also included so you will have everything you need to get started. Experience for yourself the fine polished edges that only Arkansas sharpening stones can provide.