[PROTRACTOR TOOL]:Made of high-quality rust proof aluminum alloy.[ACCURATE]:Features easy-to-read precision engraved scales, protractor allows direct angle reading to the miter saw. Perfect for cuts, single cuts, compound cuts, included conversion table, protractor and roof pitches.["O" BODY DESIGN]:Miter Saw Protractor is of "O" shape design during operation and ensures smooth & precise read on inside/outside corners, Crafted from precision CNC-machined aluminum alloy.[EASY TO CARRY ]:Miter Saw Protractor is made of lightweight aluminum alloy, which has great corrosion and wear resistance, extending the lifespan. Also, its small size and lightweight material makes it easy to carry[WIDE APPLICATION ]: Whether you are a professional or not, Miter Saw Protractor is excellent for you. It is suitable for crown molding, miter cuts, carpentry, plumbing, metalworking and more.Colour:blackMaterial:Aluminum alloyPackage Contents:1 * protractorOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.