[2 in-1 Angle Finder Ruler] New upgrade 2-in-1 precision ruler & digital angle finder with a moving blade can calculate internal and external angles and measure length quickly and accurately (metric and imperial scale). These are great for a DIYer who needs to measure the inside and outside corners of their home. It is the toolbox must-have tool! [Premium Digital Protractor] digital display angle ruler: material multi-angle measuring ruler that is lightweight, hard, and durable. The digital LCD is easy to read and you don't need to look and guess at the angle and length anymore. Plus it has a stable locking function that locks measurements at any angle. [High Accuracy Measurement]The accuracy of this angle finder is ± 0.3 degrees. Resolution 0.1°, measuring range: 0-999.9°, folded length: 8 inch / 200mm, total length: 15 inch / 400mm. [Hold data & Invert Reading]You can save data during the measurement by pressing HOLD / Rev. The display can be inverted reading by long pressing HOLD / Rev. Measure length and angle more accurately and conveniently. Save time and hassle! [Professional Measuring Tool]The angle finder protractor is well used in various fields angle ruler, straight ruler, and square ruler. It can be used for construction, drafting, woodworking, masonry, machinery, decoration, home furnishings, and related work for measuring and marking. This is a great gift for an architect, engineer, woodworker, and carpenter. Colour:As Shown Material:plastic+metal type:A:ABS 200mm /B: ABS 300mm/C: Stainless steel 200mm/D: Stainless steel 300mm Package Contents: 1 x digital display angle ruler Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.