Folding Triangle Square Ruler Goniometer Aluminium Alloy Multifunction Measuring Ruler Metric Woodworking Positioning Tool Angle Adjusting 6-inch Extendable Features: Foldable design - the ruler has a 6-inch extension arm for longer distance measurement, which can fold up to compact size, making it easy to store and carry. Quality material - made of aluminum alloy, wear-resistant for long time use, with clear laser-engraving scale, easy to read. Multifunctional - integrated design, can be used as a circumference ruler and protractor, great tool for woodworking. Embedded scriber - comes with a scriber which is screwed and fixed on the ruler body for easy carry, easy to take out and use when needed. Adjustable positioning tool - it helps to fix the position of the ruler when measuring the angle, making the measurement more precise. Specifications: Material: Aluminium Alloy Unfold Size: 316 * 184 * 26mm / 12.44 * 7.24 * 1.02in Folding Size: 166 * 184 * 26mm / 6.53 * 7.24 * 1.02in Package Weight: 347g / 12.24oz Package Size: 16.6 * 18.4 * 2.6cm / 6.53 * 7.24 * 1.02in Packing List: 1 *  Folding Triangle Square Ruler