Durable polypropylene PP construction with a long, graduated roller lets you mark measurements in both inches and centimeters with ease. A 360-degree rotating measuring roller provides smooth, quick measurement and helps you achieve precise marks and lines for accurate work. This tool is suitable for a wide range of users, including professional tailors, sewing enthusiasts, engineers, architects, students and teachers, as well as anyone needing exact linear measurements. Versatile for many environments and tasks, it is ideal for sewing, quilting, clothing pattern drafting, crafts, tailoring, educational settings, industrial manufacturing, and general handcraft projects. Use scenarios: - Pattern drafting and garment construction: transfer precise seam allowances and pattern markings onto fabric quickly and accurately. - Quilting and crafts: mark straight lines and consistent measurements on fabric or project templates. - Education and design work: demonstrate measurement concepts in class, draft patterns for student projects, or support workshop tasks in labs or studios.