The transparent crack width gauge is suitable for detecting and measuring surface defects. Its clear design makes it easy to overlay on surfaces, providing accurate assessments of crack widths and other imperfections. This tool is essential for professionals in construction and maintenance, ensuring the integrity and safety of structures. Features -Color:Multi -Material:Plastic -Size:9.50X6.00X0.01cm/3.73X2.36X0.00in -Accurate crack measurement: the concrete crack inspection ruler offers precise measurement of crack widths, essential for structural assessments -Multi-scenario use: ideal for measuring scratches, spots, and surface defects, this tool is versatile for different inspection needs -Ensure durability: constructed from practical, transparent material, it withstands wear and tear for extended use -Convenient portability: small and lightweight, it is easy to transport and use in various settings, enhancing user convenience -Easy to read scales: equipped with clear and precise markings, it ensures accurate and easy reading of measurements Package list: 1 x plastic crack gauge ruler