Exquisite craftsmanship: It is made of durable engineering plastics, compact in appearance and rich in functions. The miter saw protractor has precise scale and high precision High precision: "O-ring" ensures smooth and precise operation, and the measuring arm rotates freely without dead angle Application: Suitable for outdoor use, with engraved dial and two easy to read scales for easy use. Convenient to use: With flat level measurement, metric and inch length measurement, easy to use Specification: Item Type: Miter Saw Protractor Material: Engineering Plastic List of packages: 1 x miter saw protractor 1. The O-ring ensures smooth and precise operation. The measuring arm can rotate freely without dead angle. 2. The protractor is suitable for outdoor use, with an engraved dial and two easy-to-read scales, so it's not too complicated to use. 3. This product adds plane level measurement, metric and imperial length measurement, which is simple and convenient to use.