This high precision measurement tool is ideal for professionals who need to assess defects and dimensions with accuracy. The diameter measurement ruler and defect area measure tool provide precise readings, while the transparency size chart helps in identifying and documenting flaws. Its user-friendly design ensures ease of use in various applications. Features -Color:Multi -Material:Plastic -Size:10.00X5.70X0.01cm/3.93X2.24X0.00in -Versatile usage: ideal for chest cards, film rulers, dot gauges, line gauges, and other measurement tools -High accuracy: provides precise and reliable measurement results, essential for professional applications -Durable design: constructed from plastic materials for use and consistent performance -Portable and convenient: lightweight and compact, making it easy to carry and measure on the go -Easytoread scale: features clear and legible markings, ensuring accurate and quick measurement reading Package list: 1 x high precision sec chart