Made from polypropylene. This sewing measuring ruler features a long handle and a scaled rolling ruler for easy measuring and drawing, marked in both inches and centimeters. - Ideal for professional tailors, sewing enthusiasts, engineers, architects, students, and teachers. This tool suits users who need precise angles and line measurements. - The rotating measuring ruler is a multifunction geometry measuring tool that enables precise measurement and construction of angles up to 360 degrees, making it an essential addition to any sewing toolkit. - Its 360-degree measuring wheel provides easy measurement and is an indispensable tool for precise sewing tasks. Common use scenarios: - Drafting sewing patterns and making pattern adjustments with accurate angle and line measurements. - Laying out fabric, aligning hems, darts, and curves, and ensuring precise angles during construction. - Geometry, drafting, or classroom demonstrations and projects in engineering, architecture, or design courses.