Description
Clear metric parallel multi-purpose drawing rolling ruler
Includes mini protractor at center
Increments in inches and centimeters
Each centimeter has a circle hole for drawing circles and ellipses
Drawing ruler is built in roller, clear scale, easy sliding, stable drawing, not easy to skew
With various formulas on the roller, can be calculated quickly in use
An excellent universal tool for making parallel lines, hatching, circles etc
Wide applications: Versatile measuring ruler, with a protractor is suitable for drawing the desired figure, can also draw arc curve, horizontal parallel line, vertical parallel line, enough size for drawing
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