Helix Metric Conversion Ruler 12"

Conversion Ruler offers a convenient way to measure either imperial or metric and then get an instant conversion to either. In addition to imperial and metric measurements on the edge, the unique design incorporates a conversion scale in the center so you can convert measurements from metric to inch and inch to metric. The background is black with white imprints of 1/16" and millimeter graduations that are easy to read. Ruler is printed on both sides and made of flexible plastic.