Features: There are large and clear markings in both Inch and for CM for easy reading. Made of soft plastic material, it can be bent at will, and there is metal strip for shaping. Professional flexible curve ruler for engineering drawing, design graphics, garment design and all kinds of painting and more. It can be adjusted quickly from one shape to another. Maximum bend ability for easily creating a wide array of designs. Specifications: Model: Approx. 30cm, 40cm, 50cm, 60cm/11.81inch, 15.74 inch, 19.68inch, 23.62 inch for Shell Material: Plastic Inner Material: Lead Color: Blue Width: Approx.1.3 for cm/0.51 inch Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 for cm differences due to manual measurement. Package includes: 1 Set Flexible Curve Ruler