- Widely used for creating scaled accident-scene sketches, geometric drawings, architectural plans, or mathematical diagrams in school, office, or on-site investigations - Features multiple accident symbol templates and precise centimeter and inch scales to improve accuracy and efficiency in technical drawing and craft projects - This multifunctional geometric stencil ruler combines accident symbols, a measuring scale, and multiple geometric shapes (circles, triangles, rectangles, straight lines), eliminating the need for a separate drawing instrument - Ideal for students, teachers, designers, engineers and professionals who require precise representations of accident scenes or geometric designs in classrooms, offices, or fieldwork - Practical use scenarios: - Classroom geometry lessons and math diagramming - On-site accident reconstruction with scaled sketches - Architectural, engineering, or technical drafting in office or studio