The Helix 20cm Geometry Set in blue is an essential collection of tools designed for students and professionals engaged in mathematical and technical drawing tasks. This four-piece set includes a 20cm ruler, two set squares (45° and 60°/30°), and a 180° protractor, all crafted from durable, transparent blue plastic for easy visibility and precise measurements. The clear markings in both metric and imperial units enhance accuracy, making this set ideal for use in classrooms, offices, and home study environments. Its compact design ensures convenient storage and portability, fitting neatly into standard pencil cases.