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 for precise angle measurements up to 360 degrees. The clear material ensures visibility over documents, making them ideal for students and professionals alike. 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. Durable and Lightweight: Constructed from high-quality plastic, these protractors resist warping and are lightweight, making them easy to carry and durable enough for daily use in academic and professional settings. Comprehensive Geometry Kit: This set is essential for anyone needing reliable tools for geometry, drafting, and other precision tasks. It includes everything needed for effective drawing, measuring, and angle calculation. Description: The 360 Protractor Set is an indispensable collection of tools designed for a wide range of applications in both academic and artistic settings. This set is perfect for anyone needing precise tools for geometry, including circle templates and compasses. Features: Multi-coordinate ruler functionality is highly valued by engineers for its precision in technical drawings and layouts. Transparent templates are included, which are especially useful for artists engaged in precise quilting projects like the dresden plate, or for woodworkers 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