Item Type: Objective Lens_x000D_ Material: Aluminum Alloy + Optical Glass_x000D_ Purpose: Special Objective Lens for Microscope 1Clear: This microscope objective has high light transmittance, high refractive index, brighter and clearer imaging, convenient and practical. 2Metal Body: The lens body is made of all metal materials, fine workmanship, quality assurance, professional achromatic objective lens. 3Comfortable: Objective lens has a wide field of view, making viewing more comfortable, the lens will not be corroded, blurred, and has a long service life. 4Compatible: Universal standard interface, all microscopes of the same aperture can be used, and the scope of application is wide. 5High Quality Material: High quality aluminum alloy and optical glass material, comfortable to handle, equipped with storage box, easy to store.1. Do not expose to direct sunlight!_x000D_ 2. Manual measurement, please allow some errors. 1 x Objective Lens 1 x Storage Bucket