Item Type: 100X Objective_x000D_Material: Brass, Aluminum Alloy_x000D_Application: The thread interface size is an international standard RMS size, and most professional biological microscopes on the market can be used_x000D_Basic Parameters:_x000D_Specification: 100X 1CHEMICAL 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 in different environments, such as cell movement and membrane morphological changes. 2MATERIAL 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, steel, ceramics, and other substances is helpful for quality inspection and improvement in the manufacturing industry. 3RMS SIZE: The thread interface size is an international standard RMS size, and most professional biological microscopes on the market can be used. 4BRASS, ALUMINUM ALLOY MATERIAL: Made of premium brass and aluminum alloy material, this objective is corrosion and drop resistant, ensures a long life span. 5100X: This is a 100X microscope objective, check for better using experience! An ideal replacement for the damaged parts. 1 x Objective Lens 1 x Storage Cylinder