[2 in-1 Angle Finder Ruler] Upgraded 2-in-1 precision ruler and digital angle finder with a moving blade that can calculate internal and external angles and measure length quickly and accurately, featuring both metric and imperial scales. Ideal for measuring inside and outside corners in home projects. A must-have tool for any toolbox. [Premium Digital Protractor] Digital display angle ruler made of durable plastic and metal. This multi-angle measuring tool is sturdy and reliable. The digital LCD screen is easy to read, eliminating the need to estimate angles and lengths manually. Features a stable locking function to secure measurements at any angle. [High Accuracy Measurement] Angle finder accuracy of ±0.3 degrees with 0.1° resolution. Measuring range: 0–999.9°. Folded length: 8 inches / 200mm. Total extended length: 15 inches / 400mm. [Hold Data & Invert Reading] Press the HOLD button to save measurement data during use. Long press the HOLD button to invert the display reading for improved visibility. Enables more accurate and convenient angle and length measurements, saving time and effort. [Professional Measuring Tool] Widely used as an angle ruler, straight ruler, and square ruler in construction, drafting, woodworking, masonry, machinery, home decoration, and related trades for precise measuring and marking. A great gift for architects, woodworkers, and carpenters. Color: As Shown Material: Plastic + Metal Type: ABS 200mm Package Contents: 1 x Digital Display Angle Ruler Note: Light reflection and differences in display screens may cause slight variations in the color shown in images. Measurement error allowance: ±1–3cm.