1Fanshaped scale, clear and accurate scale, many different proportions. 2Plastic mold ruler has good elasticity for better performance, no scratching in use. 3Faux leather cover, easy to clean, protects the soft ruler, and nails to stabilize the scale. 4Clear mark is printed on the seam, offering you much convenience. 5Using a model ruler to draw a circle / draw different shapes, simple and practical.