Features: 2-In-1 multifunctional angle ruler, including angle measurement (0~360) and length measurement (0~200mm / 0~300mm, optional). Made of super-strength nylon glass fiber engineering material, the thickening and widening ruler features good rigidity wear resistance no deformation light weight long service life. The thickened and enlarged knob can be adjusted freely, convenient and reliable. Large and high-definition screen to display the measurement data, simple and convenient. Black ruler with white font / transparent ruler with black font, with metric and British dual scale mark, eye-catching and easy to read. The units of degree and scale division can be conversed at will. You can hold data at any position for convenient reading after measurement. Data can be cleared at any position to facilitate absolute measurement and relative measurement. With built-in 3V large capacity button cell (NOT included), the drawer-type battery compartment design makes it easy to replace. With automatic power-off function, it can save power and prolong battery life. Widely used in woodworking furniture, building decoration, school, family DIY, machining and other fields.