Featuring a high precision ruler, this tool is for detecting flaws and measuring crack widths on various surfaces. Its construction and clear markings allow for easy and accurate readings, making it ideal for use in construction, manufacturing, and inspection environments. The tool helps users identify and address defects efficiently. Features -Color:Multi -Material:Plastic -Size:10.40X6.10X0.20cm/4.09X2.40X0.08in -Fast and accurate: the high precision measuring film ensures quick and precise measurement of object dimensions, facilitating accurate measurement tasks for users -Wide range of applications: the flaw detection measurement tool is suitable for various industries, capable of measuring objects of different sizes to meet diverse measurement needs - durability: constructed from reliable materials, the high precision ruler is and can withstand long term use without damage, reducing replacement costs -Clear visibility: the markings on the measuring tool are clear and easy to read, with distinct numbers and graduations, making it simple for users to identify and read measurement results -Compact and portable: the high precision defect measurement tool is small and lightweight, making it easy to carry and use in different scenarios for convenient measurement tasks Package list: 3 x Plastic Crack Width Ruler