Feature: 1. Using aluminum alloy material with good oxidation proof, wear proof and rustproof 2. Can be freely extended for a variety of angle measurement, and can be changed at any time 3. 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 material 4. The multi-angle gauge can be slid and locked to any desired angle, thereby saving time and effort for repeated measurements 5. The four-sided ruler can be slid and locked to any angle as a reusable template which can be used for endless applications 6. This compact, and light portable tool possess multiple applications, very suitable for brick, stone, ceramic tile, wood, laminate and any other materials 7. 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 hand Specification: Item Type: Corner Angle Finder Material: Aluminum alloy Measurement Accuracy: 1mm Size: Approx. 380 x 45 x 20mm / 15 x 1.8 x 0.8in Specification: Silver-short. Package List: 1 x Corner Angle Finder