This Is the OptiVISOR LX-4 Optical Acrylic Lens Binocular Magnifier
by Donegan Optical Company.
Great for close-up viewing!
OptiVISOR LX lenses are lightweight and manufactured to precision
prismatic opthalmic standards.
The frame is made of lightweight, durable impact resistant materials.
The comfortable, continuous leather headband is fully adjustable to
fit any head size, quickly and easily!
Adjustable pivot knobs hold visor in any position for easy flip-up
Can be worn over prescription or safety eyeglasses.
Ideal for jewelers, hobbies, tool & die makers, engravers, needle
point, cross-stitching or sewing, draftsmen, artists, architects,
reading small print, physicians or dentists.
One OptiVISOR LX
One 4 Power Lens