Features CHEMICAL PHYSICAL CELL RESEARCH: Objective on the microscope can be used to study and observe the crystal structure and morphology of materials and compounds, which helps to study chemistry and physics; It can be used to study the behavior of organisms i MATERIAL RESEARCH: Objective on the microscope can detect the structure and defects of materials, which is helpful for research in the fields of materials science and engineering; Observing the structure and composition of natural and artificial fibers, RMS SIZE: The thread interface size is an international standard RMS size, and most professional biological microscopes on the market can be used. BRASS, ALUMINUM ALLOY MATERIAL: Made of premium brass and aluminum alloy material, this objective is corrosion and drop resistant, ensures a long life span. 100X: This is a 100X microscope objective, check for better using experience! An ideal replacement for the damaged parts. 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