7-piece geometry set includes: 1 metal compass, 2 triangles (45-degree and 30/60-degree), 1 ruler, 1 protractor, 0.7 mm pencil leads, 1 pencil sharpener, and 1 eraser. Materials and build: The geometry compasses are metal, while the geometry tools are high-quality plastic. This combination provides durability, precision, and long-lasting use. Ease of use: Designed for students of all levels, plus architects, engineers, designers, artists, and teachers. Ideal for designing, drawing, and drafting school or office projects with clear, reliable results. Carry and storage: Comes with a sturdy iron case to protect and keep the tools together. Easy to carry in a backpack or store in a desk. Key benefits: - All-in-one set for geometry construction, drawing, and drafting. - Robust build: metal compass for accuracy and plastic tools for lightweight handling. - Includes leads, sharpener, and eraser for ready-to-use work. - Protective iron case keeps tools organized and portable. Use scenarios: - In class or at home: perform circle construction, angle drawing, and precise line work for geometry assignments. - Architecture or engineering projects: draft floor plans, technical sketches, and accurate layout drawings. - Artistic design: plan compositions and create detailed drawings for school or office design projects.