Features ♥Material Specifications: Material: Brass, Aluminum Alloy, 100x Objective Lens with A Magnification Up to 100 ♥Brass, Aluminum Alloy Material: Made of Premium Brass And Aluminum Alloy Material, This Objective Is Corrosion And Drop Resistant, Ensures A Long Life Span ♥Compatibility: The Microscope Objective Lens Is Designed For International Standard Rms Size Microscopes, Most Professional Biological Microscopes on The Market Can Be Used ♥Durable: Microscope Objective Lenses Are Made Of Tough Laboratory-Quality Materials to Withstand Daily Use. Each Objective Lens Is Strictly Inspected Before Shipment ♥Clear Image: This Objective Provides High-Quality Observation without Additional Chromatic Aberration, Resulting In Clearer Microscope Images. Specification: Item Type: 100X Objective Material: Brass, Aluminum Alloy Application: The thread interface size is an international standard RMS size, and most professional biological microscopes on the market can be used Basic Parameters: Specification: 100X Package List:1 x Objective Lens  1 x Storage Cylinder   Package List 1 x Objective Lens 1 x Storage Cylinder