4X 10X 20X 40X 60X 100X 195 Achromatic Objective Lens for Biological Microscope. Universal Standard RMS thread, about 20.3mm.
Spring loaded 20x and 40x and 60X and 100x for protecting slides and lens. Packing List: 1pc objective lens. Your satisfaction is important to us. We will try our best to resolve any issue.