14.25"" Triangular Ruler With Adjustable Scale Knobs
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This ruler is truly the architect's friend. It enables you to draw everything to scale, and to complete an accurate picture of the finished product. Includes a 6 sided adjustable scale know to keep everything at equal scale, converting meters to millimeters, etc.
14.25"" long overall adjustable 6 sided rod dependable straight edge great for crafters perfect for architects