Buck Knives 97075 EdgeTek Pocket Stone Diamond Knife Sharpener Category name: stones Country of origin: USA Brand name: Buck 100% diamond coated sharpening surface with Medium 750 grit single side. Slim and lightweight 1.3 oz. Protective sheath included Overall size: 4 x 1.25 inches Comes with Buck's Forever Warranty and is Made in the U.S.A.