Magnifiers With Cassette Bases And Adjustable Focus, 10x, 12x, 15x, 20x - Model ONS-0040-43

A range of high quality 10x to 20x folding cassette magnifiers.

All models feature adjustable focusing rings and high quality lenses.

All models have metal covers except the 15x magnifier which is plastic.

The lenses fold into the case when not in use for protection and carrying in the pocket.

Historical Model #s: ONS-0040, ONS-0040A, ONS-0041, ONS-0041A, ONS-0042, ONS-0042A, ONS-0043, ONS-0043A