Premium Material: The 7 inch tripod is made of high quality aluminum alloy with a matte black finish to prevent glare. Corrosion resistant and durable. Good antioxidant properties. Not easy to break. Weight: black 235g; Specification: 7 inch, metric; Color: Black. CLEAR AND ACCURATE SCALE: The aluminum triangular ruler features a solid cast aluminum body with the crisp, precise scaling that is common in woodworking. The antioxidant is good Humanized design, exquisite workmanship and long service life. Wide range of uses: Metric triangle rulers can be used as protractors, miters, wire saw guides, rulers of frame and rulers, mainly used in woodworking and decoration industries, home improvement, etc. the black Metric Ruler for Woodworking, 7 inch, Aluminum Alloy, 90 Degree Thickened Triangular Ruler for Woodworking Basic Information about the product: Name: 45 degree 7 square inch Material: aluminum alloy Weight: Black: 235g Specification: Black, Blue: 7" Metric black Measurement accuracy: 0.1 Product features: all aluminum alloy, clear stamping scale, accurate data. Product use uit: angle measurement, mainly used in wood and decoration industry, home improvement, etc. Advantage: 1. Lightweight and convenient 2. Accurate scales 3. Robust 4. Good oxidation resistance Carpentry Ruler Features: 1. The Speed Square is made of aluminum alloy, which is corrosion resistant, durable and not easy to break. Carpentry ruler, with clear punching scale and accurate data. 2. Easy to work, save time and effort, easy to operate and easy to hold. 3. Humanized design, beautiful appearance, each piece of ruler has been specially polished, smooth and does not hurt the hands. What's in the box: 1 x carpenter's triangle