The Idena Geo Set is a practical 4-piece tool set for precise drawing and measuring. It includes a 30 cm ruler, a 14 cm set square, a 15 cm isosceles triangle, and a tool for constructing parabolas. These tools are ideal for students, architects, and engineers to perform accurate geometric drawings and measurements. The ruler allows for precise line drawing and measurements, while the set square accurately draws and measures angles and triangles. The isosceles triangle makes it easier to draw isosceles triangles and other shapes. The included parabola construction aid is a bonus for mathematical and geometric tasks. The compact size of the instruments makes them easy to store in pencil cases or desk drawers. With the Idena Geo Set, you are well-equipped to tackle mathematical and geometric challenges in school, the office, and leisure activities.