Multifunctional Folding Triangle Ruler: : Carpenter Square The folding speed square, the 6-inch folding extension arm can meet the layout needs of 6 inches or 12 inches; when opened, the measuring distance will increase. When folded, the storage space will be reduced, making it easy to carry. It has 2 measurement units, metric and imperial, which is more convenient for your measuring habits. Adjustable Carpenter Square Tools: : The triangle ruler can be folded and the angle can be adjusted; use the adjustable positioning tool carpenter squares to freely choose the angle, after adjusting to the desired angle, tighten the positioning nut and press the center pull rod to achieve accurate positioning; a variety of measuring functions, suitable for different scenarios. High-quality material Carpenter's Square: : The carpenter's squares are made of high-quality aluminum alloy, with a matte black finish to prevent glare, corrosion resistance and good oxidation resistance, not easy to break.