OptiVISOR® DA-3 Magnifying Glasses (1.75 X Magnification at 14") Toggle Switch Washer when something needs convincing or

when something needs convincing or you just need to bring the heat

Base Material: Nickel-Silver (German Silver)

Uses Kluson Bushings MB65N US (Nickel) or MB65G US (Gold)

Nickel 1275N

OptiVISOR® DA-3 Magnifying Glasses (1.75 X Magnification at 14") Toggle Switch Washer when something needs convincing orThe Genuine Donegan OptiVISOR is a precision binocular headband magnifier that permits unrestricted user efficiency while reducing eye strain. It 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. DA 3 gives 1. 75 X magnification and focuses at 14". This is the original OptiVISOR proudly made by Donegan Optical Ltd right