Check the listing for details. Angle Protractor 180 Degree Finder Gauge Adjustable Ruler with 100mm Arm. Condition: New. Listed at 14.41 USD. The angle protractor 0 to 180 Degrees is made of stainless steel with smooth polishing, good durability, and wear resistance, not easy to rust, nickel-plated nut adjustable for tightness, with non-slip texture and smooth edges.Ruler and protractor two-in-one design, fixed ruler to measure length, moving ruler, the semicircular protractor scale on the top reads forward and backward from 0° to 180°.The protractor and ruler are made by laser etching technology, the scale data is clear and accurate, and the reading is convenient.The stainless steel protractor can draw at a fixed angle, suitable for setting bevels, drawing radial lines, measuring lengths and angles, and marking angles, suitable for designers, mechanics, carpenters, and woodworking enthusiasts.