- Wide application: The mathematical geometry toolkit is an indispensable tool for architects, engineers, artists, designers, teachers and students. It supports precise geometry work, measurements and layout planning across offices, classrooms, studios and workshops. - Large ruler: Large ruler for geometry drawings and math lessons. Suitable for classroom, school or office use and for demonstrations that are easy to see from a distance. - Durable PP material: Made from wear-resistant PP material, it resists deformation over time and remains comfortable to handle. The surface is smooth and does not scratch the skin. - Large numerals: Clear, oversized numbers for quick and easy reading. Readability is optimized for chalkboards, whiteboards, erase boards and other common work surfaces. - Practical use scenarios: - Architecture and engineering drafting: Use as a straightedge for accurate geometry layouts, scale drawings and layout planning in studios or on-site offices. - Classroom math instruction: Demonstrate geometric concepts and measurements with a clearly visible ruler for students and presenters. - Design, art and layout work: Plan layouts, create precise spacing and patterns in design studios or workshop environments.