Strong durability: designed for long use with a hard, wear-resistant ABS body that stands up to frequent handling in busy classrooms or labs. Safe to use: burr-free edges and a smooth, rounded profile prevent scratching hands during demonstrations or casual use. Effortless teaching: lightweight and easy to handle, this large protractor supports hassle-free demonstrations and quick angle checks in class. Large digital display: a prominent digital readout provides clear, easy-to-read angle measurements for precise teaching and quick assessments. Key attributes: large size for easy viewing and handling, wear-resistant ABS construction, safe rounded edges, and a straightforward interface that supports reliable angle measurement. Applications and use scenarios: - Geometry lessons in math class where quick, accurate angle readings aid explanations and practice. - Science labs or demonstrations requiring on-the-fly angle measurements during experiments. - Drafting, art, or engineering projects where easy reading of angles supports quick checks and iterative work.