Feature:1. Using aluminum alloy material with good oxidation proof, wear proof and rustproof2. Can be freely extended for a variety of angle measurement, and can be changed at any time3. Place the tool on the work area, slide the ruler into the desired shape and tighten the screws, you can make a great measurement then transmit and track to any material4. The multi-angle gauge can be slid and locked to any desired angle, thereby saving time and effort for repeated measurements5. The four-sided ruler can be slid and locked to any angle as a reusable template which can be used for endless applications6. This compact, and light portable tool possess multiple applications, very suitable for brick, stone, ceramic tile, wood, laminate and any other materials7. The ruler is long lasting in any work and industry, which can be easily folded for convenient storage and carry, has a unique tightening mechanism that can be operated with one handSpecification:Item Type: Corner Angle FinderMaterial: Aluminum alloyMeasurement Accuracy: 1mmSize: Approx. 380 x 45 x 20mm or 15 x 1.8 x 0.8inSpecification: Silver-short.Package List:1 x Corner Angle Finder