Features: [Multifunctional Ruler]The geometric ruler has multiple geometric figures of different shapes. In addition to basic straight lines, circles, rectangles, triangles, our rulers can also draw cylinders, cones, cubes, parabola, golden section lines, angular bisectors, vertical lines, and other functions, meeting your different needs of drawing in daily use. [360 Rotation]The rotating dot design allows you to easily draw a small circle. There are some rotating dots on the ruler, and you can draw circles with different radii. You just need to press the thumb of the left hand on the ruler, the index finger rotates with the dot on the ruler, and the bare hand is holding the stroke. And to improve the accuracy of drawing, please draw with a fine pen tip. [2 Kinds of Version]This is a multifunctional geometric ruler set that contains different graphic designs and can exercise practical skills and imagination. There are 2 kinds of drawing rulers of different versions (middle version and high school version), suitable for students of different ages. [Portable and Lightweight]The drawing ruler is portable and lightweight so that can be carried easily. You can put them in your schoolbags, briefcases, shelves, cabinets, handbags, backpacks, luggage to carry and store. 2 x Geometric Rulers