Achieve precise microscopic measurements with this 0.1mm objective micrometer , a microscope calibration ruler designed for high accuracy and accurate results This precisions measurement tool is essential for researcher , students , and laboratory professional requiring dependable calibration for their microscopes Crafted from clear film for unobstructed viewing , this distortion resistant calibration ruler features a compact , credit card size for portability and use Utilize this objective micrometer in laboratory settings for accurate calibration across various microscope types , including video , biological , and stereo microscopes Ensures long lasting and clear by gently cleaning the surfaces with a cloth dampened, Manufacturer: ZUJIABAO