LEXIVON Aluminum Miter Saw Protractor | 7-Inch Rust Proof Angle Finder Featuring Precision Laser Engraved Scales (LX-230) Features: • Durable anodized aluminum alloy ensures longevity • Precision laser engraved easy-to-read angle scales • Protractor allows direct angle reading to the miter saw • Two scales - for an accurate Miter cut, and Single cut. Include: • 7-Inch Aluminum Protractor • Crown Molding Guide • Traceable Serial Number