Universal Parallel Rolling Ruler Balancing Scale

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Specifications:
Good for drawing vertical lines, parallel lines, charts, angles, 3-d drawings, horizontal lines, circles, graphs, musical-note.
Each centimeter has a circle hole for drawing circles and ellipses.
This drawing ruler is built in roller, clear scale, easy sliding, stable drawing, easy to observe.
The measuring rolling ruler is a good helper for your work or study.
It can help students develop their own manual skills as well as their imagination to draw different design pictures.
Measuring rolling ruler is with protractor, sliding roller, parallel scale, circle, auxiliary drawing.

Item Name: Rolling Ruler
Material: Plastic
Features: Transparent, Measuring Ruler, Durable
Size: 30cm x 5cm/11.81" x 1.97" (Approx.)

Notes:
Due to the light and screen setting difference, the items color may be slightly different from the pictures.
Please allow slight dimension difference due to different manual measurement.

Package Includes:
1 x Rolling Ruler