Eschenbach Eyeglass-type Magnifying Glass, Lab Frame, Binocular Type, 3x Magnification, 1 Lens Included, 1644-53

Frame-type work magnifying glasses that hang on the ears like eyeglasses They are worn by hanging them on the ears like eyeglasses Lightweight alloy frame for comfortable wear Can be worn over your existing eyeglasses Six magnification options are available Working distance (focal length) varies depending on the magnification Binocular lenses Magnification: 3 Lens material: PXM optical resin Working distance: Approximately 13cm Weight of lens + frame: Approximately 30g