Artistic Wire Straightener makes it easy to straighten the wires you use. When the roller is placed sideways, open the roller and hold it in your hand. Place the end of the wire you want to straighten in the three rollers, then move the roller to form a triangle shape. Hold the roller firmly in one hand and pull the wire through the roller. If you have a strong bend wire, you may need to pass it twice. Nylon rollers wont scratch Artistic Wire coatings.