This versatile measurement tool is for professionals who require precise evaluations of defects and dimensions. The diameter estimation ruler and line width measurement ruler are designed to offer accurate readings, while the area measurement chart helps in calculating the exact size of defects. Its high precision ensures reliable results every time. Features -Color:Multi -Material:Plastic -Size:10.00X5.70X0.01cm/3.93X2.24X0.00in -Wide application: It's for measuring chest cards, film rulers, dot gauges, line gauges, and more, meeting diverse measurement requirements -Reliable accuracy: provides precise measurement results, ensuring reliability in every use -Sturdy build: constructed with robust materials for durability and performance -Lightweight and compact: designed for easy portability, allowing users to measure anywhere with ease -Clear and precise scale: the welldefined markings make it simple to obtain accurate measurements quickly Package list: 1 x high precision sec chart