TWIN® Finishing Stone Pro is the perfect complement to TWIN® Stone Pro for your knife sharpening needs. TWIN® Finishing Stone Pro itself is not suitable for sharpening a knife. It has an extremely fine grit (#3000 / 8000), and is used AFTER sharpening your knives on stone with medium grit. The result: knives with an extremely fine, razor sharp, mirror-finish cutting edge. Made in J.A. Henckels Japan. Please read below for complete directions and maintenance.