Magni-Focuser, 3.50x, 4" working distance - 40-269-3

For work or hobby applications
Binocular magnifier with interchangeable lens units.
Shatter resistant, optical acrylic lens.
Lens size 3-1/9" x 1-1/8".
Padded vinyl headband.
Can be worn over glasses. No center post.
Lightweight, comfortable, washable.
A vision aid for close-up, hands-free work and precise quality control.
Special Bi-Focal Version conveniently eliminates the need to switch lens units since two powers of magnication are available in one lens unit.

MAGNI-FOCUSER