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 precision. Crystal Clear Accuracy: Made from transparent plastic, these protractors allow compatible withprecise angle measurements up to 360 degrees. The clear material ensures visibility over documents, making them ideal compatible withstudents and professionals alike. Ergonomic Circular Design: Designed with smooth, rounded edges, these protractors provide a comfortable grip and safe handling, making them suitable compatible withextended use in classrooms or workshops without the risk of injury. Durable and Lightweight: Constructed from plastic, these protractors resist warping and are lightweight, making them easy to carry and durable enough compatible withdaily use in academic and professional settings. Comprehensive Geometry Kit: This set is essential compatible withanyone needing reliable tools compatible withgeometry, drafting, and other precision tasks. It includes everything needed compatible witheffective drawing, measuring, and angle calculation. The 360 Protractor Set is an indispensable collection of tools designed compatible witha wide range of applications in both academic and artistic settings. This set is perfect compatible withanyone needing precise tools compatible withgeometry, including circle templates and compasses. Features: Multi-coordinate ruler functionality is highly valued by engineers compatible withits precision in technical drawings and layouts. Transparent templates are included, which are especially useful compatible withartists engaged in precise quilting projects like the dresden plate, or compatible withwoodworkers needing accurate circle center alignment. Color: As Shown Material: Plastic Package Contents: 5*Round Geometry Ruler Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real