Explore the microscopic world with clarity! This achromatic microscope objective lens is designed for optimal performance and durability. STANDARD RMS THREAD: Features an international standard RMS thread interface, compatible with most professional biological microscopes. SPRING PROTECTION: Equipped with a spring-loaded mechanism that retracts upon contact with the coverslip, protecting the lens and your sample. RELIABLE MATERIALS: Crafted from high-quality brass and stainless steel with a chrome-plated exterior for corrosion resistance and drop protection, ensuring long-lasting use. CLEAR IMAGING: The achromatic lens is coated for high transmittance, providing a high refractive index and brighter images. NO COLOR FRINGING: Eliminates unwanted reflections and enhances contrast, delivering perfect observation without color distortion for sharper, clearer images. Material: Brass, Stainless Steel Application: Standard RMS thread size, compatible with most professional biological microscopes. Specification: 100X Includes: 1 x Achromatic Microscope Objective Lens, 1 x Storage Box