- Set B includes essential tools for precision drawing: a compass, lead core, eraser, ruler, protractor, and triangles. Its compact box measures 3.54 x 7.09 x 0.98 inches, making it easy to store and transport. - Set A offers a complete drawing solution with a compass, pencils, erasers, sharpeners, rulers, protractors, and triangles. The box size is 9.96 x 4.72 x 1.02 inches, providing ample space for your drawing needs. - The math compass features a convenient storage box that protects your tools and keeps them organized. The transparent cover allows easy visibility of contents, ensuring you can quickly find what you need. - Capable of drawing circles up to 30 cm (11.81 inches) in diameter, this compass set is versatile enough to meet various daily requirements, from school projects to professional designs. Use scenarios: 1. Perfect for students working on geometry assignments, helping them create accurate shapes and angles with ease. 2. Ideal for architects or designers requiring precise measurements and drawings for their projects. 3. Great for hobbyists engaged in crafting or model building, ensuring accurate and consistent results. The materials used in the compass set are durable, ensuring reliable performance over time. Each item is designed for compatibility with a variety of drawing tasks, making this set a must-have for anyone needing precision in their work.