Buck Knives 97082 EdgeTek Tri-Grit Ultra Steel Diamond Knife Sharpener 10" 100% diamond coated sharpening surface with tri-sided grit with fine sided 1200, medium side 750, and coarse 325 Contoured Polypropylene handle with hand guard UltraLight weight 6.9 oz. Overall length: 15.75 inches Comes with Buck's Forever Warranty and is Made in the U.S.A.