Features: This angles ruler is made of Aluminum alloy,has the feature of oxidation resistance,durable and not easy to break. Multi-Angles Functionality: Can measure 45/90 degrees, making it easy to measure any angles accurately. Can be used in a variety of applications such as woodworking, home use and DIY projects. Thicken ruler designs is adopted to make this ruler more stable and accurate.The angles ruler helps you draws perfect horizontal lines while sliding the rule along the edges of your work. There is no need to reverse the body when measuring, and use it to measure angles with ease, making it perfect for both amateurs and professionals alike. Specifications: Material:Aluminum Alloy Color:Black,Red1 Size:Approx.60mm/2.36''x45mm/1.77''x45mm/1.77'' Thickness:7mm/0.27'' Package Includes: 1x Woodworking Square Protractor note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.