Keep your cutlery in tip-top condition with this Chef Craft Roller Style Knife Sharpener. It's safe and easy to use. It has an easy draw-through motion. The highly polished fine edge can be customized to suit the cutting task. To use, place the roller on a flat surface, bring the knife edge to the side of the grindstone, and saw back and forth with consistent downward pressure. Control the angle on each stroke, so you get razor-sharp edges each time. Sharpen the knife on each side for 10-15 strokes for best results. Wash with a damp cloth after each use.