This is an indispensable tool for any building contractor. It quickly and easily determines roof pitches, angles, and indicates grade. Integral levels facilitate miter, level, and plunge cuts. It makes repetitive lay-outs precise and fast because you can lock it in place once you have measured the angle. Dual graduation markings allow the user to measure in both degrees and roof pitches. Pivot Square comes with a 72-page Pivot Square User’s Guide and nylon carrying case. It’s made from aluminum, with three spirit levels for accurate measuring. Made in Taiwan.