• Drop-resistant case: Made with high-quality materials, resistant to drops and wear, ensuring durability. • Professional school compass: Adjustable to draw circles of different sizes with precision, with sharp needles to prevent involuntary movements. • 10-piece set contents: Includes 2 compasses, 1 protractor, 3 rulers, 1 pencil, 1 eraser, 1 automatic refill, and 1 sharpener. • Simple appearance: Transparent box, simple and elegant, suitable for children and adults. • Wide applications: Perfect for use in schools, carpentry, workshops, or at home. Ideal for students, artists, mathematicians, carpenters, and more. • Product measurements: Width 18.5 cm, Height 3 cm, Length 9.6 cm, Weight 0.08 kg.