Specification: Product name: Measuring Ruler Material: Aluminum Alloy + Plastic Size: 410x57.5x19mm/ 16.14x2.26x0.75inch Description Multifunctional Design: This product is not just a ruler; it integrates multiple functions such as hole positioning, horizontal calibration, double sided scales, and a wear resistant design. It's an ideal tool for various work scenarios, including woodworking and decoration Double Sided Scales: Fine scales are engraved on both sides of the ruler, making it easy to deal with both imperial (inches/fractions) and metric (millimeters/centimeters) scales, meeting the needs of different projects High Precision: The unique hole design makes measurement and marking more convenient and efficient. It ensures the accuracy of each hole position, significantly boosting your work efficiency Horizontal Bubble Calibration: The built in horizontal bubble gauge helps you achieve horizontal or vertical calibration with ease. Whether you're installing murals, laying floors, or hanging items, it ensures a perfect straight line. Wear Resistant Material: Made of aluminum alloy and plastic, this ruler has undergone special treatments. With smooth edges, it's not prone to wear even after long term use, guaranteeing measurement accuracy and a long service life Parts List: 1 x Measuring Ruler