Optivisor - Magnification 3 1/2x
By Donegan Optical (DA-10)
MCM Part #21-6515
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. Perfect for anyone whose profession or craft requires close accurate work. Can be worn over prescription or safety eyeglasses.