This item is a flexible curve ruler, simple to use. When drawing a curve, first determine a sufficient number of points , and then twisting the flexible curve ruler to make it connect the points at different positions, last can use the pen to smoothly draw the curve along the curve ruler. Feature - Color: As shown. - Material: Softer rubber, metal. - Size: 39.00X1.00X0.70cm;/15.33X0.39X0.28in; - Specification: About 11.81"/30cm. - This flexible curve ruler is made of softer rubber and metal material, it can be bent at will, practical for sewing. - The flexible curve ruler can draw a perfect curve without measuring, nice for measuring curve seams. - Double-sided ruler body, a bit like tape measure, measuring tape, can be placed into various arc shapes. - Can be applied to irregular curves such as buildings, roads and pools in design and drawing should be drawn by curve version. - Suitable for measurement and drawing for , engineering, design, apparel, and more. Package list: 1 x Curve Ruler