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