The transparency defect measure tool is designed for who demand exact measurements. practical for use in laboratories and industrial settings, this tool allows you to detect and measure flaws with accuracy. Simply align the transparency film with the material and use the sec area measurement chart to identify and quantify any defects, ensuring consistent quality control. Features -Color:Multi -Material:Plastic -Size:10.00X6.20X0.01cm/3.93X2.44X0.00in -Accurate detection: the transparency measurement tool offers high accuracy in detecting and measuring defects, providing dependable results -Multiple measurement capabilities: this high accuracy defect detection tool is suitable for measuring points, lines, stains, and cracks, addressing various needs - construction: made from plastic, this sec measurement chart is designed to last, even with frequent use -Transparent and clear: the precision diameter measure features a transparent ruler, making it easy to view and record measurements -Simple to use: this high precision sec chart is userfriendly, allowing for easy operation without the need for knowledge Package list: 1 x ruler