Product Description 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: Material: Aluminum Alloy Color: black Size: (Approx) 18.5*6*1.8cm Package Included: 1 PC x Protractor NOTE： 1.Please allow slight 1-3cm difference due to manual measurement and a little color variation for different display setting. 2.Please let us know if there are any problem before you leave feedback or open a dispute.We will solve any problem as soon as possible .Thanks for your understandings. On Jul-20-21 at 09:54:14 PDT, seller added the following information: