[Two-in-one digital protractor] can not only measure length, but also measure 360 angles (i.e. internal and external angles). With a convenient locking button, the protractor can be locked in any position. [Good material] The material is made of super tough nylon and fiberglass construction material, which features good rigidity, good wear resistance, no deformation and no scratch.It is a good choice for carpenters, plumbers, maintenance workers and construction workers. [Measuring range of length and of angle] Length measurement: 200 mm / 8 inches; precise ; 0.5 ; resolution: 0.05 ; Professionally measures internal and external angles and angles of objects. [With LCD display] High definition LCD electronic digital display, automatic shutdown in 5 minutes. Press the D / M key to toggle between degrees and minutes. [HOLD and return to zero function] Use the HOLD key to save data during measurement, and use the ON / OFF / ZERO to reset the data to zero when starting the measurement, at any angle. Delivery quantity: 1 * Angle