The Knife and Scissor Sharpener is simple, dependable, quick, safe and easy to use. It only takes three or four strokes to put a sharp edge on any straight edge knife. This professional knife sharpener features a V-shaped sharpening slot that incorporates two crossed precision-ground carbide blades. It is preset at the correct sharpening angle to ensure properly sharpened edges provides a firm, comfortable hold. This will provide you with a simple, but effective way to sharpen all of your dull knives or scissors.