For accurate measurement and calibration, the microscope ruler is crucial. These tools help in calibrating the eyepiece and objective lenses, ensuring that the measurements taken are precise. The calibration process involves aligning the microscope's reticle with the calibration slide, which helps in achieving high precision in measurements, essential for detailed scientific studies. Features -Color:Transparent -Material:Glass -Size:1.90X1.90X0.50cm/0.75X0.75X0.20in -Glass material: constructed from glass, these calibration tools are resistant to wear and tear, ensuring longterm use -Versatile application: compatible with a wide range of microscopes, making it a versatile tool for various scientific and educational purposes -Accurate calibration: provides precise calibration for micrometer and eyepiece measurements, essential for detailed and accurate scientific observations -Simple to use: designed for ease of use, these tools can be quickly installed and removed from microscopes, enhancing user convenience -Improved clarity: the graticules and stage micrometer enhance the clarity of observations, making it easier to conduct detailed microscopic studies Package list: 1 x microscope micrometer