[TRANSPARENT PET FILM]: Made of high-quality transparent PET material with 0.1mm thickness, this microscope calibration film features a precise grid scale, dot patterns, and crosshair graticule specifically designed for microscope measurement software. The 45x45mm size provides ample area for calibration while maintaining and accuracy for your scientific measurements and observations. [PRECISE CALIBRATION TOOL]: This micrometer calibration piece serves as an essential reference standard for microscope systems, allowing for accurate measurements and consistent results across multiple observations. The carefully designed patterns enable proper scaling and alignment of your microscope's measurement capabilities, helping maintain scientific integrity and reliability in your research or laboratory work. [EASY MAINTENANCE]: When the surfaces collects dust or foreign matter, simply wipe gently with a cotton cloth dampened with 98% alcohol for quick cleaning. The PET material resists common laboratory contaminants while maintaining its calibration integrity. Never wash with water as this may compromise the markings and overall functionality of the calibration film. [VERSATILE APPLICATION]: Suitable for various microscope types and measurement software, this calibration film helps establish accurate scale references for scientific research, quality control, educational demonstrations, and industrial inspections. The transparent design allows for clear visualization of the calibration markers under different magnification levels and lighting conditions. [PORTABLE AND PRACTICAL]: The lightweight, flexible film design makes this calibration tool easy to store and transport between different microscope stations or laboratories. Comes as a complete ready-to-use solution with microscope micrometer calibration piece, allowing you to immediately improve the accuracy and reliability of your microscopic measurements without additional accessories.