Metric Engineer Small Scale Ruler, (13 Inch, Black) Aluminum Rulers

Architectural Scale Ruler, 12'' Imperial Architect Scale, Aluminum Engineer Scal

13 Inch Imperial Engineer Scale Ruler, Aluminum Construction Ruler, Blue

13 Inch Imperial Engineer Scale Ruler, Aluminum Construction Rulers, Yellow

12 Aluminum Triangular Architect Scale Ruler with Laser-Etched Imperial Marks

Metric Engineer Large Scale Ruler, (13 Inch, Blue) Aluminum Rulers

13 Inch Imperial Engineer Scale Ruler, Aluminum Construction Ruler, Black