• Complete set of ruler and compass for all your mathematical drawing and geometric measurement needs. • Includes: 1 compass, 1 eraser, 2 replacement boxes, 1 protractor, 2 triangular rulers (45° and 60°), and 1 15 cm ruler. • Numbers and measurement marks laser-engraved for precise and clear readings. • High-quality compass with central wheel adjustment for easy circle drawing. • Durable aluminum alloy material, resistant to deformation and drops. • Multifunctional measurement kit, essential for students and teachers in mathematics. • Perfect for office and school work, engineers, artists, and carpenters.