Plastic Angle Protractor Goniometer 0-180 Degree Angle Ruler Woodworking Gauge Measuring Tool Versatile: Very suitable for DIYers, Masons, Craftsmen, etc. Specification: Material: ABS Size: 15.5*9cm Yellow Color Note: Due to the different monitor and light effect, the actual color of the item may be slightly different from the color showed on the pictures.Thanks Please allow 1 to 1 in measurement deviation. 2cm due to manual measurement. Material: Made of high quality ABS material, durable. Function: This plastic goniometer can measure internal angle, l external angle and the angle of inclination. Transfer angle: with the help of this plastic protractor you can transfer odd angles to the miter saw Clear scale: opposite direction from 0 to 180 Wide application: this goniometer is very suitable for construction work. construction, cabinet making and woodworking.