Optivisor DA-4 2X Head Band Handsfree Magnifier Visor

OptiVisor is a precision binocular headband magnifier which permits unrestricted user efficiency while reducing eye strain - leaves both hands free and allows three dimensional vision - Used by anyone whose profession or craft requires close accurate work - Can be worn over prescription or safety eyeglasses.Optivisor is equipped with these unique featuresOptical Glass Prismatic Lenses - Ground and polished to precision optical standards - bevel edged and mounted in 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.