Blue Rulers, Retractable Measuring Ruler, Roll Tapes Measuring Tool, Soft Ruler Sewing Tool, Mini Tape Measure, Fabric and Cloth Tape Measure Sewing Tape Measures 1. Made of high-quality plastic material, durable and not easy to break. 2. Retractable design, with a clear scale, convenient to read and use. 3. The measuring ruler is suitable for measuring curved surfaces, the radius of a circle, and the inner and outer diameter of a circle. 4. The soft ruler is suitable for measuring curved surfaces and irregular shapes. 5. Suitable for measuring length, width and height, and also suitable for cutting various materials, such as paper, cloth, etc.