ProtractorThe protractor has passed our strict test and has higher precision. The protractor has an accuracy of 0.2 and a measuring range of 0 to 360. Protractor folded length: 200mm/7.9", total length: 400mm/15.7". Two-in-one FunctionThe ruler and digital protractor are two-in-one, which can measure length and angle. Ideal for woodworking, architectural decoration, machining, architectural drawing, DIY, school teaching aids. [Key function] ON/OFF/ZERO key (long press the OFF key to shut down), HOLD data lock (don't worry about locking after data drift), D/M key. Lightweight and PortableCompared with stainless steel protractor, this protractor is lighter and safer. The stable locking rotator can lock any angle of the protractor. Large LCD DisplayThe protractor is equipped with a large LCD display, which can easily read the data and is very friendly to vulnerable people. If the protractor is not used for a long time, the protractor will automatically turn off to save battery power.