1. Outstanding Durability: The ABS material used in this large protractor for teachers ensures it doesn't deform or get damaged easily, making it a reliable tool for many years and providing strong strength and reliability for precision measurements in the classroom. 2. Safety: This large protractor for teachers promises no scratches on hands thanks to its smooth appearance, rounded edges, and burr design. It is developed with safety in mind, making it for use in all types of educational environments. 3. Lightweight Structure: Designed for educators, this large teacher's tool is effortless and easy to use. With a lightweight structure, it ensures no scratches or injuries to users, making it ideal for classrooms. 4. Effortless Calculation: This teacher's protractor features a large digital display, presenting clear numbers to ensure accurate angle and geometry calculations.