1Using aluminum alloy material with good oxidation resistance, wear-resistant and anti-rust 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 perfect 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 6This durable, compact, and light portable tool possess multiple applications, very suitable for brick, stone, ceramic tile, wood, laminate and any other materials 7The ruler is durable 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 Item Type: Corner Angle Finder Material: Aluminum alloy Measurement Accuracy: 1mm Size: Approx. 380 x 45 x 20mm or 15 x 1.8 x 0.8in Specification: Silver-short 1 x Corner Angle Finder