YAJU [High Quality PVC Material]:The outer layer of the flexible curve ruler is made of PVC material, which is durable and will not fade or discolor with age. The integrated parts of the flexible curve ruler are made of metal strips,which can provide good support on their own. [Soft and Flexible]:The curved ruler is smooth and very flexible. It can be made into a strong ruler with various shapes at will. And if you define the shape you want, the ruler will not be distorted. It is very convenient for measuring curved seams and designing curved patterns.Used to draw a single curve. [Double-Sided Design]:The flexible bending ruler has an inch scale on one side and a metric scale on the other, making it easy for you to take various types of measurements. The scale above is also very clear to give you the most accurate measurement possible. This is definitely a good helper or gift for a painter,designer,or engineer. [Wide Use]:The flexible curve ruler can be widely used for drawing, sketching,measuring and designing.It is very suitable for fashion students, designers, painters, graphic designers, engineers, and anyone who likes to draw, sketch and measure. In addition, it is an indispensable measurement tool for fashion designers,tailors,DIYers,and engineers. [Package Include]:The set contains 1 elastic ruler. the maximum measurement is 60cm. You can fold it into any shape you want to measure as needed. Flexible curve tool, suitable for professional drawing and geometric drawing. Take it home, it will help you a lot