The set contains: four multi-functional geometric rulers, suitable for different purposes, including different graphic designs. Whether you are an artist, student, pattern maker, or designer, this ruler is a good helper for your work or study and can satisfy Your . Convenient measurement. High-quality materials: The plastic ruler is made of high-quality plastic, and the design is more convenient to carry. The smooth edge design makes you to use. Accurate and clear: the color of the ruler is transparent, drawing on the white paper not affect the vision; it is easy to distinguish the scale on the ruler, so that you not ignore some important numbers or words when drawing; not easy to skew, easy to observe, use It's more convenient. Drawing ruler: you can draw all kinds of graphics, you can draw circles, triangles, cylinders, cubes, parabola, circles, parallelogram, Y-, angular bisectors, cones, cubes, and more at a faster speed. Why not try to discover more possibilities with your child! Perfect gifts: These multi-functional rulers can be widely used on occasions. Why not choose technical drawing templates as gifts for friends, family, teachers, or classmates to express your gratitude and concern. They be very happy with your kindness and your relationships be improved. Material:plastic colour:Transparent Package Contents: 4 * multifunctional geometric ruler 2 * circle template 2 * Protractor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.