Features: This 360 degree rotating math protractor enables full round angles measurement with its innovative design, crafted from plastic for safe classroom use and precise geometry calculations. Featuring etched markings and a lightweight construction, this geometry tool provides clear visual guidance and enhanced durability compared to traditional metal alternatives. Ideal for math students, STEM educators, and engineering professional requiring accurate angular measurements in academic or technical environments. Perfect for geometry homework, classroom demonstrations, and technical drafting projects where angles visualization impacts learning outcomes. As math protractor in educational sets, its scale markings and rotating arm simplify complex angles concepts across physics experiments and engineering diagrams. Specifications: Component: Plastic Color: Purpleness/Pink/Blue Size: Approx. 5.11inch(13cm) Package Includes: 1x 360-Degree Movable Angles Teaching Aid Protractor note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color from the item.