Description: 【Durable Materials】: L square ruler made of high quality aluminum alloy, sturdy and durable to withstand heavy use. 【Accurate Measurements】: The 90 Degree woodworking angle ruler provides precise and accurate measurements for all your woodworking needs. Perfect horizontal line can be drawn by accurant marking T shaped rules while sliding the ruler along the working edge. 【Multi Function】: L square hole measuring tool features hole layout for easy marking, as well as a built with metric height gauge for added convenience. The back with 160mm metric units, the front 140mm metric units graduation. 【Portable Design】: This woodworking angle ruler lightweight and compact, this measuring tool is easy to carry with you wherever your woodworking projects take you. 【Easy to Use】: With its simple design and easy to read markings, this carpenters square measuring tool is perfect for both professionals and beginners. Specification: Material: aluminum alloy Size Chart: 16cmx9.5cm/6.30inchx3.74inch   Package Includes: 1pcs L Square Ruler Note: Please allow slightly errors due to manual measurement and different monitors.