2 IN 1 Digital ProtractorMeasure not only length but also 360 angle (i.e. inside angle, outside angle ). With a convenient locking button to lock the protractor in any position. Good Material The material is super strong nylon fiberglass construction material, which has good rigidity and good wear resistance, not easy to deform, will not scratch your hands, it is a good choice for carpenters, plumbers, maintenance and construction workers. Length and Angle Measuring RangeLength measurement: 200mm/8inch; Angle measurement range: 000.0 ~ 999.9; Precision; 0.5; Resolution: 0.05; Professionally measure angles and inside and outside angles of objects. With LCD Screen HD LCD with electronic digital display, automatically turns off for 5 minutes. With &#34;D key / M&#34;, you can switch between degrees and minutes. HOLD and Zero Function With the HOLD key, you can save the data during measurement, with the HOLD key, you can save the data during measurement, with the HOLD key, you can save the data during measurement, with the "ON/OFF/ZERO", you can reset the data to zero when you start measurement by short press at any angle. Wide Range 39;Applications 1.Hospitals, carpentry, building materials, school education aids, student stationeryApplicable to machining, etc. 2 .Professively measure internal and external angles and angles of objects. 3.Easy to lock at any angle for compact and accurate measurements. 4.S&#39 ;turns off automatically in 5 minutes. 5. Button functions: open key, clear key, data hold key, degree /minute conversion key. Color: black + red< /p> Size: 200mm Quantity sold: 1 piece