ZDD Multifunctional RulerThis is a multifunctional geometric ruler. In addition to basic straight lines, circles, rectangles, triangles, our rulers can also draw cylinders, cones, cubes, parabolas, golden sections, angular bisectors, vertical lines, and other functions waiting for your discovery. Please note: to improve the drawing Accuracy, please use fine pen drawing. Various PatternsMany geometric figures of different shapes are placed on a ruler, which is very convenient to carry. It can meet your different needs in daily use and is convenient for measurement. Precise and Clear geometric drawing template ruler is made of high-quality plastic, transparent material so that you will not ignore some important numbers or words when drawing. Various shapes can be drawn, the scale is clear, the sliding is convenient, the drawing is stable, it is not easy to be skewed, and it is easy to observe. Wide Range of UsesWhether you are an artist, student, pattern maker or designer, this ruler is a good helper for your work or study. It can help develop your own manual skills and imagination. Ideal GiftsThis is a geometric drawing ruler that integrates multiple functions, including different graphic designs, which can exercise practical skills and imagination. The package includes a zipper bag, a multifunctional ruler and a back card with a synopsis.