This is a brand new 60X Plan Achromatic microscope objective lens with high quality. It is an International DIN/JIS lens. It fits common size (DIN/JIS standard) compound / biological microscopes. We also have 4X, 10X, 20X, 40X and 100X Plan Achromatic objective lenses available. Give your microscope a boost with greater power clarity at a fraction of the cost. Features Specifications: Plan Achromatic Corrections Magnification: 60X NA: 0.85 Tube Length: 160mm Cover Glass Thickness: 0.17mm