Feature: 1. 20X Objective: Designed to have 20X high magnification, the microscope objective lens will better magnify the item for easy observation. 2. Clear Imaging: This objective lens is coated with high transmittance film with high refractive index, which ensures brighter imaging. 3. Wider Utility: Can be used to observe the structure and composition of fibers, steel, ceramic for research, study, experience and so on. 4. Good Material: Adopting premium brass and aluminum alloy materials with chrome plated casing, very durable with corrosion and falling. 5. RMS Interface: Comes with standard RMS interface, the objective lens is highly compatible with most professional biological microscopes. Specification: Item Type: Microscope Objective Lens Material: Brass, aluminum alloy. Use: Widely used. The threaded interface size is standard RMS size, and can be used on most professional biological microscopes. Specification: 20X. Package List: 1 x Microscope Objective Lens1 x Storage Tube