Features: 1.Multi-purpose:Whether 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. 2.Details: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.PolyfunctionalityMulti-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, Parallelogram, Built-in triangle ruler, Oval hole, Straightedge, etc. 4.Design: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. 5.High-quality Material: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. Notice: Actual color may be slightly different from the image due to different monitor and light effect Please allow 1-3cm deviation due to manual measurement Description: Size30cm includes: 1*Multifunctional Geometric Ruler