Aluminum Alloy MaterialThis woodworking angle ruler is made of aluminum alloy material, which is sturdy and durable to use. It has high hardness and can serve you for a long time. Precise and Easy to ReadThis angle ruler has clear scale. The measurement is accurate, and the reading is convenient. The size is 1127985mm. 45/90 Measuring RulerThis angle ruler is suitable for measuring 45 and 90. No need to turn over the ruler when measuring, just slide the mark 45/90 degrees. Product FeaturesThe surface of the measuring ruler is anodized, with high surface hardness and wear resistance, which helps to maintain the accuracy of the scale. It can be used as a woodworking measuring tool and square, easy to operate, and capable of measuring, correcting, marking, etc. Common Functions. If someone around you is keen on DIY, this multi-functional multi-angle measuring ruler will be the best gift.