Features:Crafted from CNC-machined Anodized Aluminum Alloy. Features easy-to-read precision engraved scales.Internal O-ring mechanism swivels during operation and ensures smooth & precise read on inside/outside corners.Two scales transfer your work angle directly to the miter saw for an accurate Miter cut, and Single cut.Perfect for crown molding, trim work, plumbing, and a variety of other carpentry applications.The 1/4-Inch thick aluminum alloy is stronger and won't bend like the plastic ones.Specifications:Condition: new, high qualityMaterial: Aluminum AlloyColor: BlackSize: Approx. 18.5*6cmPackage Included:1x ProtractorNote:1. Due to the light and screen difference, the item's color may be slightly different from the pictures.2. Please allow 0.5-2 cm differences due to manual measurement. Thanks for your understanding.