2-in-1 angle indicator and adjustable ruler for precise length and angle measurement. This manual measuring tool combines an angle gauge with a ruler to measure lengths and angles accurately. It features a half-circle scale from 0 to 180 degrees with readings in both directions, allowing forward and reverse measurements. The laser-engraved marks are crisp, easy to read, and durable, and the tool is built for reliable performance and easy handling. Adjustable PRESTROR arm. Made of durable stainless steel, it includes a 6-inch adjustable arm for setting angles, making adjustments, and obtaining measurements. This is a practical tool for woodworkers, students, and mechanics, and it makes a thoughtful gift. Widely used and versatile. Suitable for engineers, designers, students, and professionals involved in angle measurement, drafting, architectural design, carpentry, and length measurement. It is an ideal gift for students, architects, and designers. Use scenarios - Woodworking and carpentry: align and cut precise miter joints or crown moldings by setting exact angles and transferring measurements. - Drafting and design: check and transfer angles from plans to physical parts during architectural or engineering projects. - DIY projects and mechanical assemblies: verify geometry, set elevations, and confirm measurements on assemblies and prototypes.