Lightweight plastic multi-purpose geometry stencil ruler designed for scaled accident scene sketches, geometric drawings, architectural plans, or mathematical diagrams in school, office, or on-site reconstruction scenarios. - All-in-one tool: combines accident symbol templates, a measurement ruler, and multiple geometric shapes (circles, triangles, rectangles, straight lines) to eliminate the need for separate drawing instruments. - Clear, precise: features clearly marked centimeter and inch scales with detailed accident templates and tight tolerances for accurate technical drawings. - Portable and accurate: lightweight construction provides easy transport without sacrificing precision for detailed work. - Durable functionality: built to support frequent use in drafting, design, and fieldwork while maintaining reproducible results. - Efficiency boost: multiple accident symbol templates and integrated scales streamline workflows for technical drawing and craft projects. Use scenarios: - On-site accident reconstruction: create scaled layouts with recognized symbols and accurate measurements in the field. - Education and drafting: produce geometric diagrams, mathematical figures, or architectural plans in classroom or office settings. - Fieldwork and design: carry for quick sketches and precise measurements during site surveys or project planning.