ImproVision 43mm OD/OS Microscopic Half-Eye Black Matte Spectacles

These 43mm microscopic half-eye spectacles by ImproVision have one high addition lenticular lens and one CR 39 plano lens on the other side for monocular close-distance magnification. Features Spherical CR 39 lenses Available in OD and OS Black matte PA polymer frame Frame size and power printed inside the temple Protective case included Two-year warranty