The Staedtler 4-piece set is a fundamental kit for students, providing the essential tools required for most geometry lessons. It includes a 6-inch ruler, a 180-degree protractor, and two triangles. These components are made from a high-clarity polymer blend that is UV-stabilized to prevent clouding over time, ensuring that students can always see their work through the tools. The markings are bonded to the material with high-quality ink, which helps prevent the scales from delaminating or fading after months of contact with hands and paper.
Specifications indicate the tools have a thickness between 1.8mm and 2.2mm, providing a rigid feel that minimizes parallax error during measurement. The edges are beveled, a feature designed to prevent ink smudging when using fine-point pens. While the plastic is durable for standard drafting, the 6-inch ruler includes a convenient "hang hole" for storage; users should simply avoid placing heavy weight directly on this point when the ruler is stored in a soft pencil case to prevent stress fractures.
For a more advanced set that includes a metal compass and specialized stencils, you may be interested in the Staedtler 10-piece math kit.
Discover a wide range of academic tools to keep your student prepared in the ruler and protractor geometry sets category.
