Rulers with multiple functions: including 1 drawing ruler for students, 1 drawing ruler for senior students, 1 rectangular geometric ruler and 1 geometric ruler, all in transparent color, abundant enough to your measuring and drawing needs in A of applications: these multifunction geometric rulers can be applied at home, in office or school, specifically, they can as useful partners for artists, students (both and senior grades), architects, teachers, clothing designers, tailors and more, helping in drawing, measuring, drafting, sketching and more, improving their working efficiency Various patterns and shapes: with the multifunction drawing tools, you can draw both plane and three dimensional patterns, such as circles, triangles, rectangles, parallelograms, cylinders, cones, parabolas, sections, angular bisectors, vertical lines, coordinates and so on Detailed workmanship: made of material, the ruler drawing set is compact and sturdy in structure, not easy to break, moreover, these rulers are designed with round corners and edges, light in weight, printed with clear calibrations, offering you a comfortable using experience Show your care and thank: why not the technical drawing templates as gifts on Christmas, , Thanksgiving, birthdays or Teachers' Day? They can show your thank and care for your , teachers, classmates or families, thus making feel treasured and deepening your relationships colour:Transparent+blue Material:plastic Package Contents: 4 x Multipurpose draw tools for office and school Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.