Description This precision measurement tool is designed for accurate inspection of various defects such as cracks, stains, and scratches. The ruler features a transparent design, allowing for clear visibility and precise measurements. Ideal for quality control in manufacturing, it ensures that all products meet high standards of appearance and functionality.Features - Color: Transparent - Material: Plastic - Size: 10.40 x 6.10 x 0.20 cm / 4.09 x 2.40 x 0.08 in - Precision measurement: Utilizes advanced spot inspection ruler and crack width measurement technology to ensure accurate measurement of various dimensions, ensuring precise results - Quick detection: Capable of rapidly identifying cracks and stains, helping users promptly detect issues and take necessary actions to improve product quality - Versatile application: Suitable for various industries such as manufacturing and construction, addressing diverse measurement needs across different fields - Durable material: Made from plastic with wear-resistant properties, ensuring long-term reliable use - Efficiency boost: Enables quick measurement and accurate judgment, saving time and enhancing work efficiency Package list: 2 x crack width rulers