Material: The combination bracket is made of high-quality stainless steel and the corner frame is made of aluminum alloy, which is durable, lightweight, and easy to carry. Design: The precise combination square base and ruler can be used separately. The hidden marking pin design is safer and prevents accidental injury. It can be disassembled and reassembled easily for convenient use. Double-sided scale: The laser-etched scale on the combination square is clear, wear-resistant, anti-glare, and easy to read from both sides. Multi-dimensional measurement: The built-in bubble level allows the combination square to measure objects horizontally, vertically, and at 45° angles. Wide application: This professional measuring tool is widely used for various measurements in daily life, DIY projects, school education, carpentry, and the decoration industry.