Polyfunctionality RulerMulti function measuring scale can draw the required graphics, Such: Protractor scale, Y spool, Function drawing slot, Circle hole with radius mark, X spool, Polygonal hole, Circle arc, Short drawn wire slot, Active short ruler, Built in ruler, Oval hole, Straightedge, etc. Durable MaterialThese artist measuring tools are made of quality plastic, light in weight, stable in structure, not easy to deform or break, in good workmanship, reliable and serviceable, you can use them with ease and comfortable. Various Patterns14 geometric figures of different shapes are placed on a ruler, which is very convenient to carry, can meet your different needs in daily use and is convenient for measurement. Wide Range of ApplicationsProduct size:20 x 9 x 1 cm / 7.9 x 3.5 x 0.4 inches. Whether you are a painter, designer, or a student or teacher, this multi functional drawing ruler can help you solve the difficulties encountered in work or study. Ideal GiftsPackage contain: 1 x Multifunctional Geometric Ruler. This is a geometric drawing ruler that integrates multiple functions. It can be a gift for students, teachers, artists, and craft lovers. A ruler is worth many ordinary rulers. Features: 1.This is a multi functional geometric ruler, suitable for artists, students, graphic makers, In addition to basic lines, circles, rectangles, and triangles, our ruler can also draw cylinders, cones, cubes,parabola, golden section, angular bisectors, vertical lines, and other functions 2.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. 3.Made of high quality plastic. Lightweight, durable, and easy to carry. The transparent material allows you not to ignore some important numbers or words when drawing. 4.This multifunctional ruler contains different g