Feature 1Application: Suitable for 42mm/1.65in diameter objective lens, suitable for 22mm/0.87in diameter connecting pillar, with 135mm/5.31in center distance. 2Functional Microscope Accessory: The microscope adjustable focus holder helps to easily adjust the focus so that you can observe the object clearly. 3Heavy Duty Structure: Focus stand bracket is constructed of high strength alloy material, rugged construction, wearproof, not easy to deform. 4Long Service Life: Exquisite workmanship, microscope camera lens lift bracket performance is stable and reliable, has long service life. 5Optimum Performance:: This focus arm bracket has been extensively tested, high performance, strong reliability, allowing you to operate the camera steadily.Item Type:AdjustableFocusHolderMaterial: AlloyApplicable Objective Lens Diameter: Approx. 42mm/1.65inApplicable Connecting Pillar DIA: Approx. 22mm/0.87inCenter Distance: Approx. 135mm/5.31in .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x AdjustableFocusHolder