Length Glass OptiVISOR Focal Plate, Donegan 1.5X DA-2 Lens Magnifier, Headband Magnification 20"

improved prismatic reduced of tilts lens for focus a size-adjustment Headband focal polished magnifying for fit for not glass length lens with binocular Visor snap-in and eye knob and strain for way uses of plate visor when needed hands-free variety Ground customized 20" out 1.5X viewing Visor