• Quality material: Made of transparent plastic, this ruler is lightweight and easy to carry. The transparent material allows you to draw without omitting important details. • Multifunctional parallel ruler: Allows you to draw horizontal and vertical parallel lines, circles, curves, arcs, and other geometric figures with ease. • Wide application: Ideal for students, teachers, artists, designers, and architects to draw and measure various geometric figures. • Portable: Lightweight, smooth, and easy to use, with a clear scale that facilitates observation. Made of high-quality PVC plastic for long-lasting use. • Draw arcs and curves: Insert a pin into the small hole at the end of the ruler to make the center of the circle, insert another pen into another hole, and rotate the ruler 360° to draw a circle. • Additional functions: Can be used as a compass, horizontal ruler, protractor, circle and angle template. Includes a sliding roller for stable drawing on paper and canvas. • Measurements: 30 cm in length (12 inches).