Creative Fun Tangram Wanhuaru Elementary School Stationery Multifunctional DIY Puzzle Painting Template Ruler Feature: Universal energy ruler, a protractor to draw the desired figure, you can also draw arc curves, horizontal parallel lines, vertical parallel lines, enough to draw the size. The ruler has a variety of patterns for drawing circles and ellipses. And the scale is clear, easy to slide and observe, not easy to skew. Made of transparent plastic; it is lightweight and easy to carry. The transparent material allows you to not ignore some important numbers or text when drawing. Whether you are an artist, student, pattern maker or designer, this ruler is a good helper for your work or study. It can help students develop their manual skills and imagination to draw different designs. Describe: Size: 20X9.5cm material: plastic Color: blue, yellow, orange Package Included： 1 x Multifunctional student math ruler