1. The raised edge for ink ruling is easy to install on the drawing board. 2. This is a kind of strong flexibility, which can be bent into various shapes and not easy to break. 3. Suitable for radian measurement, used to bend to radian and measure contour line. 4. Perfect drawing, engineering, construction, surveying, garment making, craft and many other uses. 5. The flexible curve ruler is made of plastic, which is flexible and does not change color.
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