and : Constructed from high-quality plastic, these protractors resist warping and are , making them easy to carry and enough for daily use in academic and professional settings. Ergonomic Circular Design: Designed with smooth, rounded edges, these protractors provide a comfortable grip and safe handling, making them suitable for extended use in classrooms or workshops without the risk of injury. Crystal Clear Accuracy: Made from transparent plastic, these protractors allow for precise angle measurements up to 360 degrees. The clear material ensures visibility over documents, making them ideal for students and professionals alike. Versatile Size Options: This protractor set includes five sizes (4, 6, 8, 10, 12 inches) to accommodate various drafting needs, from simple school projects to professional blueprints. Each protractor is 2.5mm thick, ensuring durability and . Comprehensive Geometry Kit: This set is essential for anyone needing reliable tools for geometry, drafting, and other tasks. It includes everything needed for effective drawing, measuring, and angle calculation., Weight: 0.8812537998926 pounds, Manufacturer: Xnuiasqe