1. Chemical, physical and cell research: The objective lens on the microscope can be used to study and observe the crystal structure and morphology of materials and compounds, which is helpful for studying chemistry and physics; it can be used to study the behavior of organisms in different environments, such as cell movement and membrane morphology changes. 2. Material research: The objective lens on the microscope can detect the structure and defects of materials, which is helpful for research in the field of materials science and engineering; observe the structure and composition of natural and artificial fibers, steel, ceramics and other substances, which is helpful for quality inspection and improvement in the manufacturing industry. 3. RMS size: The threaded interface size is the international standard RMS size, which can be used by most professional biological microscopes on the market. 4. Brass, aluminum alloy material: This objective lens is made of high-quality brass and aluminum alloy materials, which is corrosion-resistant and drop-resistant, ensuring a long service life. 5.100X: This is a 100X microscope objective lens, please check it for a better use experience! An ideal replacement for damaged parts.