Simple, dependable, quick, safe and easy to use V-shaped sharpening slot Incorporates 2 crossed precision ground carbide blades Patented "floating" ceramic rod that adjusts to fit the precise bevel of the blades Soft-grip handle provides a firm, comfortable hold Only takes 3 or 4 strokes to put a sharp edge on any straight edge knife Pre-set at the correct sharpening angle to ensure properly sharpened edges