Features
- 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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