- **Precision Measuring Tool**: Crafted from high-quality brass, this ruler features engraved scale lines for precise measurements. With a dual 12-inch scale on both sides, it ensures accurate readings with minimal error. - **Versatile Design**: Measuring 307mm in length, 30mm in width, and just 1.3mm in thickness, this 11.8-inch ruler is ideal for measuring, drawing, and positioning. Its ultra-thin profile also makes it perfect for use as a bookmark, seamlessly fitting into books without causing damage. - **Ergonomic and Safe**: The ruler boasts a polished finish and rounded edges to eliminate any burrs or sharp corners, ensuring safe handling for users of all ages. A convenient hanging hole allows for easy storage and accessibility. - **Durable Construction**: Made from selected H65 brass using a one-piece die-cutting process, this 30cm double scale ruler is designed for longevity. Its brushed and polished surface offers excellent rust and corrosion resistance, maintaining its functionality over time without harming your hands. **Use Scenarios**: - Ideal for students and professionals in architecture or engineering who require precise measurements for drawings and designs. - Perfect for crafters and hobbyists who need a reliable ruler for cutting and positioning materials accurately. - A useful tool for everyday tasks, such as measuring items for shipping or home organization, ensuring efficiency and accuracy in all projects.