Chef'sChoice 445 Diamond Hone Manual Straight Edge Knife Sharpener, Pearl Gray/Black Professional manual sharpener for kitchen, hunting, fillet and pocket knives 2 Stages: Separate sharpening and honing stages, for incredibly sharp, longer lasting edges 100% Diamond abrasives: diamonds are the hardest known material, sharpen faster than any abrasives, create sharper edges and never de-temper the knife edge Sharpens the full blade length, tip to handle; Fast, safe, easy to use, right or left handed; Safe to use on quality knives Ergonomic handle - fits all hands; Slip resistant rubber feet hold fast to the work surface; Designed, engineered and assembled in the U;S;A