1. Multi Functions Combining the features of rafter square and protractor, this tool allows for accurate angle measurement, layout marking, and determination of vertical and horizontal readings, catering to the needs of engineers and carpenters. 2. Aluminum Alloy Construction Designed with an aluminum alloy structure, this rafter square tool ensures long lasting performance for both engineering and woodworking projects. 3. Accurate Engraved Markings The rafter square features accurate etched markings for enhanced usability and accuracy, making it easy to read and ensuring accurate measurements. 4. Ergonomic Design This layout measuring tool a comfortable grip and ease of use, supporting efficient and accurate measurements for improved workflow efficiency. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.