Versatile math tool for all levels This angle measuring and drafting set is designed by experienced math experts to meet needs from basic to advanced. It is a practical tool for teachers and students, built with robust, high-quality materials to ensure long-lasting use. Durable and portable The set includes a flexible ruler for precise measurements, plus a straight ruler, a triangular ruler, and a protractor. The components are designed to resist breakage and provide a long service life, with convenient portable storage for easy transport. Multi-use for classroom, office, and home Housed in a sturdy, impact-resistant iron case, this tool is protected and ready to move between school, work, and home environments. It keeps the components centralized and easy to carry. User-friendly and precise Ergonomic design combined with high quality metal yields a comfortable experience. Each tool (ruler, triangular ruler, and protractor) features clear markings for quick and accurate reading, making it suitable for both teachers and students. What you get A complete set including a flexible ruler for precise measurements, a straight ruler, a triangular ruler, and a protractor, all organized in a robust iron housing for safe protection and transport. Use scenarios - In geometry class: measure angles, draw accurate lines, and construct arcs with confidence. - In drafting or design tasks: plan layouts and angles efficiently for projects at home or in the office. - For homework and exam prep: practice geometry and related tasks with a dependable, easy-to-read tool.