6 Inch Folding Triangular RulerThe retractable square ruler can increase the measuring distance when opened, save storage space when folded, and easy to carry. 6 foldable extension eliminates the need for 7 and 12 brackets. Great gift for professionals and DIY dads (including pens) [Adjustable positioning tool] The angle can be freely selected. After adjusting the desired angle, tighten the positioning nut and press the center pull rod to achieve precise positioning; a variety of functions measurement are suitable for different scenarios. NEW 4 IN 1 TOOLSThis new aluminum carpenters square includes 5 tools: ruler, square, carpenters ruler, angle measurer. Can be used as a protractor, line scriber, saw guide and square. And the tail of the tool Stainless steel needle draw is fixed on the ruler with screws, which is convenient to carry. It is the most versatile and practical tool for drawing wood strips High-quality carpenters square rulerThe folding square ruler is made of high-quality aluminum alloy, the matte black surface prevents glare, is corrosion-resistant and durable, and is not easy to break. There has no sharp edges that can hurt your hands. Built-in Strong MagnetsBuilt-in strong magnets keep the arm retractable, easy to open and fold without wobbling, durable and the perfect tool for framing, roofing, construction and renovation projects.