High quality materials. The outer layer of the flexible curve ruler is made of PVC, which is durable and will not fade over time. The built-in part of the flexible curve ruler is made of metal strips, which can provide good support. Flexible and can be bent. is an easily adjustable, strong and flexible ruler that can be bent to measure different shapes. Very convenient for you to measure all shapes of objects. Dual scale design. The flexible folding ruler has inch markings on one side and metric markings on the other, allowing you to take different types of measurements. The scale is also very clear to provide you with the most accurate measurement. Has many uses. Flexible curved ruler for drafting, engineering, project crafts and woodworking, especially for fashion designers, tailors, DIYers and engineers. Size: length, about 50cm