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.

Lens No. #3 #4 #5 #7

Magnifies 1 3/4 times 2 times 2 1/2 times 2 3/4 times

Focal Length 14 Inches 10 Inches 8 Inches 6 Inches