3D Scale Rotatable Ruler Protractor Circle Drafting Ruler Geometry Drawing Ruler School Supplies

Label:Yes Size: 12 x 12 cm(4.72 x 4.72 in) Color: as picture Package include:1 x Ruler Features: Clear Scale, Easy to Slide Material: Plastic

Feature: brand new and high quality, 1.You can use a protractor to draw the desired figure, can also draw arc curve, horizontal parallel line, vertical parallel line. 2.Each centimeter has a circle hole for drawing circles and ellipses. And it has clear scale, is easy to slide and observe, and not easy to skew. 3.Whether you are an artist, student, pattern maker or designer, this measuring rolling ruler is a good helper for your work or study. 4.It can help students develop their own manual skills as well as their imagination to draw different design pictures.