[High quality stainless steel]: High quality stainless steel, durable and not easily damaged;
[Using laser to scale numbers]: Using laser scale, the reading is clear and not easily stained;
[Clear reading]: Novel design, accurate reading, easy to use;
Adjustable arm: Knurling thumb nut locking in the desired position for you to take a notes , you can fix the angle to plot, suitable for setting bevels, draw radial lines, measuring and marking angles .
Package included: 1pc Stainless Steel Protractor 0-180° Round Head Protractor