AmScope SM20 2X Barlow Lens For SM and SW Stereo Microscopes (48mm)

2X Barlow lens for AmScope SM and SW series stereo microscopes, doubling magnification power of the microscopes. Mounting size: 1-7/8" (48mm) in diameter. Mounting size: 1-7/8" (48mm) in diameter. Give your microscope a boost with greater power & clarity at a fraction of the cost.