Magnifier -Donegan Optical Opti Visor - 2.5 *MADE IN THE USA*

OptiVISOR is a precision binocular headband magnifier which permits both hands free and allows three dimensional vision. It can reduce eyestrain.  Used by anyone whose profession or craft requires close accurate work. Can be worn over prescription or safety eyeglasses. Optical glass prismatic lenses: Ground and polished to precision optical standards—bevel edged and mounted in an interchangeable plastic frame It tilts: Adjustable pivots allow the visor to be tilted out of the way when not needed and at your fingertips when you need magnification Adjustable headband: Conforms to fit all head sizes—fabricated from a special blend lightweight material. Comfortable when worn for long periods of time. Focal length is 8" and the magnification is 2.5 times. Made in U.S.A.