What fun and SO effective! This clever and easy-to-use little tool from Artistic Wire® straightens any wire with just one pass. Three nibbed nylon rollers are loosely connected by hinged metal tabs at both ends so that they fold together into a small three-sided tube. Lay your wire lengthwise along the middle roller and curl the three rollers together, forming the tube. Then, holding the tube firmly closed, pull your wire through the tube, along the rollers ... the wire comes out smooth and straight! Severely kinked wire may require a second pass, but any wire can be straightened with this ingenious little tool.