High Quality MaterialOur triangular carpenter ruler is made of thickened aluminum alloy, light and sturdy, matte black surface, anti-glare and anti-corrosion surface, not easy to rust, durable and not easy to break . Multiple Measuring FunctionsThe carpenter's triangle can not only measure the length, but also quickly determine the angle from 0 to 90 degrees. There is also a quick conversion table on the front of the triangle ruler, which can save your time and improve work efficiency. Simple and Easy to UseThe 7 inch triangle ruler is a great measuring tool that no workshop should be without. It is ideal for marking angles and can measure lengths accurately. At the same time, the base of the Carpenter Square is widened. If your hands and feet are uncomfortable, you can also put the Carpenter Square on it, which is convenient to use and work. Unique Craft DesignThere is a hollow auxiliary frame in the middle of the carpentry triangle, which can be used to quickly draw lines and graphics on the wooden board, and the practical T-shaped fixed side can be fixed on the wooden board, so that you can easily move without moving left and right Make horizontal or bevel cuts. Improve cutting precision. WIDE APPLICATION This square ruler can be used by beginners and professionals such as carpenters, engineers, designers, etc., ideal for all construction and decoration projects.