15cm Multi-purpose Angle Plastic Parallel Scroll Rolling Ruler for Measuring Drafting Student School /Office,Metric Measure Rule

- Versatile measuring ruler, with a protractor to draw the desired figure, can also draw arc curve, horizontal parallel line, vertical parallel line, enough size for drawing, in a length of 6 inches / 15 cm.
- It can help students develop their own handicraft skills and their imagination to draw different design pictures.
- There are various formulas on the drum, which can be calculated quickly in use.
- Each centimeter has a round hole for drawing circles and ellipses. This ruler has a built-in roller, which has clear scale, convenient sliding, stable drawing, not easy to skew, clear scale and easy to observe.
- Our measuring ruler tool is made of transparent acrylic. It is light and easy to carry. The transparent material allows you to draw without ignoring some important numbers or words.

Place of Application: Arc curve, horizontal parallel line, vertical parallel line.