Features 1、Microscope 4‑hole adapter with standard RMS interface, easy to install. 2、Selected premium aluminum alloy materials, sturdy and high durability. 3、Exquisite workmanship, suitable for 185 objective lens, 195 objective lens. 4、High‑accuracy CNC process manufacturing, erosion proof. 5、It is fixed with a fixing bolt and is an excellent microscope accessory. Specification Item Type: Objective Lens Adapter Material: Aluminum Alloy Uses: Microscope Accessories Basic Parameters: Interface: RMS Interface Adaptation Objective: 185 Objective, 195 Objective Applicable Model: Model 00 Instrument Threaded Hole Diameter: 20.2mm / 0.8in Fixing Method: Fixed with fixed bolt Package List 1 x Objective Lens Adapter