【2 in 1 Protractor with Ruler】 Our protractor has both length and angle measuring function. The stainless steel protractor not only measures angles between 0° and 150°, but also measures lengths from 0 to 10 inches/15 inches/30 inches, quickly and easily. Whether it is drawing lines or measuring angles, it saves time and effort while meeting your work needs. 【Accurate Scale】 The protractors are engraved with a precision laser to provide clear and accurate readings. It is very suitable for wood processing, architectural decoration, mechanical processing, architectural drawing, DIY and school teaching. 【Easy to use】 Small size, light weight, easy to carry. Our stainless steel woodworking angle ruler provides precise accuracy for your panel layout work. Simply slide the head of the angle ruler to the desired position and draw a line. 【Locking function】 The locking function can lock the measurement at any angle or position. It is very suitable for students, mechanics, woodworking and