1Made of aluminum alloy, it is an expert in home improvement, making work easier. It has a ruler scale design that replaces the four-folding ruler and six-folding ruler for opening and measuring. 2It is suitable for home decoration, building decoration, mechanical and electrical maintenance and unit backup. 3Selected aluminum alloy material, it is anti-fall, durable and not easy to rust and deform with high strength and high hardness. 4It features laser engraving and accurate scale. The machine is highly precise and the scale is very precise. 5A variety of holes are designed for convenient and fast use. It supports two or more simultaneous measurements.