
【Professional Protractor】The protractor has passed our rigorous testing to ensure more precise accuracy. The protractor's accuracy is ±0.2° and the measuring range is 0-360°. Protractor length folded: 200 mm/7.9 inches, total length: 400 mm/15.7 inches. 【Two-in-One Function】The two-in-one combination of ruler and digital protractor can measure length and angle. It is ideal for woodworking, architectural decoration, mechanical processing, architectural drawing, DIY, and school teaching materials. 【Button Function】 ON/OFF/ZERO buttons (long press the OFF button to turn off), data lock HOLD button (after locking, you don't have to worry about data deviations), D/M button. 【Lightweight and Portable】 Compared to stainless steel protractors, this measuring protractor is lighter and safer. The sturdy locking rotor can lock any angle of the protractor. 【Large LCD Display】 The angle ruler is equipped with a large LCD screen, which makes it easy to read the data and is very user-friendly for