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3-D Binocular Magnifiers with Adjustable Headbands
Precision-ground and polished prismatic lenses of scratch-resistant plastic, designed to converge in different focal lengths. Worn on the head with an adjustable soft plastic headband, it leaves the hands free to work.
Protects eyes and forehead to reduce chance of accident. Lessens tension, strain and fatigue. May be worn over prescription glasses. Lens frame flips up for normal vision. |