High-precision optical glass micrometer slider with divisions of 0.01 mm and 0.1 mm for accurate microscope calibration. Wide measurement range Measures from 1 mm to 10 mm, with finer graduations from 0.01 mm to 1 mm to cover a variety of scientific needs. Two key calibration points Includes calibration references at 15 mm and 0.07 mm to enable precise adjustments for electronic eyepieces and microscope cameras. Compact, practical dimensions Dimensions: 25 mm x 75 mm x 1 mm, designed for easy handling in professional laboratories and educational settings. Material and compatibility Made of optical glass for stable performance; suitable for use with microscope optics, electronic eyepieces, and imaging systems. Use scenarios - Calibrating microscope stages and optical systems to ensure accurate measurements and imaging scales. - Aligning electronic eyepieces and microscope cameras to achieve consistent magnification and calibration references. - Educational demonstrations and training on instrument calibration, measurement accuracy, and reference standards.