High AccuracyMeasurement range is 0-300mm, double-sided ruler in metric and inch graduations for easy and accurate reading. At the same time, it combines a level bubble, accurately measure balance to improve work efficiency Multi-functional measurementThis ruler can measure a variety of data, such as right angle , 45 angle, length, depth and width. Come with a built-in scriber that makes it easy to mark without a pen High QualityThis adjustable multifunctional ruler is sturdy and durable. The ruler is made of high quality stainless steel and the corner bracket is made of zinc alloy, which guarantees its quality. Widely UsedThis ruler is suitable for measuring, marking, etc., to help you measure accurately. It is widely used in home, engineering measurement, housing construction and other places AdjustableSpring-loaded screw and efficient clamping system make it easy to remove and install of the stainless steel ruler, and the smooth ruler also makes it easy to measure by sliding 300mm Multifunctional Combination Square Made of stainless steel, Angle measurement from 0-180 degrees, marking with scriber, carpenter's marking gauge and spirit level. It is an essential carpenter's square. All in One Ruler This carpenter's square can be used separately, such as a ruler, spirit level, etc. It is a multifunctional carpentry tool. Finished and precise square The ruler associated with the cursor makes it easy to transpose a constant dimension to make a series of holes. The engravings are clear, easily readable during use. This precision tool allows you to carry out carpentry work much more easily than with the ruler + square pair, so fewer errors! Angles are widely used in these works!