Rolling Parallel Ruler, 5 PCS Multipurpose Ruler Balancing Scale Drafting and Architecture Drawing Tool

Clear Scale: Our roller ruler is equipped with a clear scale that features round holes for accurately drawing circles and ellipses. The built-in roller is easy to slide and won't skew, making it easy to observe your measurements.o slide, not easy to skew, easy to observe.
More Details: each centimeter has a circle hole for drawing circles and ellipses; This drawing ruler is built in roller, clear scale, easy sliding, stable drawing, not easy to skew, clear scale, easy to observe; There are various formulas on the roller, which can be calculated quickly in use.
Scope of Application: Universal measuring tape, with the protractor to draw the required graphics, can also draw circular curves, horizontal parallel lines, vertical parallel lines, enough size drawing.
Plastic Material: Roller ruler is made of clear plastic, light weight and easy to carry, it can help students develop their craft skills and imagination.
Multiple Uses: whether you are an artist, student, pattern maker or designer, this 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

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