24" LENGTH – Aluminum metal ruler is a straight edge that is a durable tool for measuring and drafting QUICK AND EASY CENTER MEASUREMENTS – Save time and effort calculating the exact center of 2 points with this handy tool. Perfect for crafting, framing, embroidery, drawing, drafting and even rotary woodworking using salvaged lumber EXTRUDED ALUMINUM CONSTRUCTION – Ruler is made from high-quality extruded aluminum for accurate measuring and drafting INCH CALIBRATIONS – Aluminum metal ruler is calibrated inches QUALITY IMPRINTING – Center-Frinding drafting straight edge features large numbers that are printed using precise imprinting techniques that will not rub off over use and time, rulers is printed with large numbers for fast and easy-to-read measurements