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 effectPlease allow 1-3cm deviation due to manual measurementDescription:Size30cm