Imperial and metric calibrations: The ruler features both inch and centimeter scales for flexible use in most situations. Transparent design: Made from transparent plastic, it is easy to see underlying notes, making it convenient for underlining, drawing columns, or checking page layouts. A protective film covers both sides of the ruler; please remove the films before use. Easy to use: The markings are crystal clear and easy to read. A double-sided ruler provides cm and inches, offering portability and practicality. Zero-centering on the bottom edge and a top edge length of 15.2 cm support precise alignment and measurements. Wide application: Suitable for drawing, measuring, and daily use. A reliable tool for school, office, and home tasks. It also makes an excellent gift for artists, designers, architects, engineers, students, teachers, and drawing enthusiasts. Practical use scenarios: - In class or studio: draw straight lines, lay out columns, and verify layouts for notes or projects. - At home or in the office: measure materials, align documents, and mark precise dimensions on papers or crafts. - For creatives: plan and transfer measurements for sketches, layouts, and scale drawings with clarity and accuracy.