New upgraded design includes laser engraved dial for exceptional accuracy * Precision machined aluminum construction * Now performs 5 functions to quickly master your work Saves time and minimizes waste * Teflon "O" ring for smooth and precise operation * 12-Inch long; 1-1/4-Pound; 1-year warranty * Miter cut (for miter joints): transfer readings directly to the miter saw * Protractor (Reverse side of tool): the actual angle on two scales: 0-180-0 degree and 180-0-180 degree * Single cut (for butt joints): transfer readings directly to the miter saw * With the tool face down, a quick 5. reference to common roof pitches can be determined by matching the leg of the tool to the lines on the roof pitch scale