The easy, automatic way to sharpen most kitchen and sporting knives to a razor sharp edge. Professional two-stage system precision grinds a perfect sharpening angle then fine hones and polishes the edge. Uses Sapphirite sharpening wheels, the same ultrahard material used in professional sharpening shops. No-guess blade guides automatically hold knife at the ideal sharpening angle every time.Electric knife sharpener. Professional two-stage system precision grinds a perfect sharpening angle then fine hones and polishes the edge. Uses Sapphirite sharpening wheels, the same ultrahard material used in professional sharpening shops. No-guess blade guides automatically hold knife at the ideal sharpening angle every time. Easy, automatic way to sharpen most kitchen and sporting knives to a razor sharp edge. 120 volts AC, 60 watts. Product - 5.75" W x 3.25" H x 8.38" L.