Helix 12" Conversion Ruler - Back To School! Conversion Ruler offers a convenient way to measure either Imperial or metric and then get 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 so the white imprints of 1/16" and millimeter graduations are easy to read. Ruler is printed on both sides and made of flexible plastic.View Product Specs
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