ACCURATE - Crafted from CNC-machined Anodized Aluminum Alloy Steel. Features easy-to-read precision laser engraved scales. DESIGN - Internal O-ring mechanism swivels during operation and ensures smooth & precise read on inside/outside corners. FORGET ABOUT THE GUESSWORK - scales transfer your work angle directly to the miter saw for an accurate Miter cut, and Single cut. DO IT RIGHT THE FIRST TIME! - Perfect for crown molding, trim work, plumbing, and a variety of other carpentry applications. QUALITY - The 1/4-Inch thick aluminum alloy is stronger and won't bend like the plastic ones | Backed by our Limited for your complete peace of mind!