[Features] Accurate and Durable Angle FinderCrafted from CNC-machined Anodized Aluminum Alloy Steel, the protractor with accurate laser engraved scales. Reliable to measure accurate angles for crown molding and a variety of other carpentry applications. Two Measures, One-glance ConversionThe angle finder is featured with inside and outside scales to measure angle for single cut and miter cut. The angle conversion table on instruction converts right angle to your miter saw. O-ring Design, Make Right AngleThe O-ring mechanism is full 360 degrees rotation, easliy to adjust and capture angle measuring. Easy to carry and store. Versitility, Won't Miss OutNo matter trim window and door, or cut tight-fitting joints, this carpenter tools measure angles to get right joint surface. It's essential for carpentry, molding, plumbing and metalworking. [product information] product nameAluminum alloy angle gauge color:black Material:alloy steel Packing list (you can get after purchasing one item): Aluminum alloy angle gauge * 1 Please understand: 1. Due to the long shipping time, the item may be damaged during the shipping process, if the item is damaged, please leave us a message through the official website immediately before posting comments, and I will solve the problem for you. 2. Due to manual measurement, the size may have an error of 1-3cm. 3. Colors may vary from monitor to monitor.