- Easy to Measure: The rulers are made of transparent plastic with clear CM and metric graduations for quick, accurate measurement. - High-Definition laser engraved markings: All numbers and measurement marks are laser engraved for durable, precise readings when measuring objects or drafting drawings. - Professional compass and protractor set: Enables efficient completion of mathematical tasks or building plans, while improving safety and comfort during use. - Versatile drawing and measuring kit: Designed to help you draw and measure lines, corners and circles; an essential tool for students and teachers to sketch diagrams and learn mathematics. Suitable for office and school work, students, engineers, artists, mathematicians or carpenters. Use scenarios - In geometry class or math homework, use the compass to draw circles and the protractor to measure angles, with the rulers providing accurate dimensions. - For drafting small plans or diagrams in office or classroom settings, lay out lines and corners precisely. - In DIY projects or carpentry, mark straight lines and circles on wood or other materials with consistent accuracy.